Item 6B - 5BL.6065 - BPL - North Wing - 1403 formResource number: 5BL.6065 1
Temporary resource number: N/A
OAHP1403 Rev. 9/98
COLORADO CULTURAL RESOURCE SURVEY
Architectural Inventory Form
I. IDENTIFICATION
Official eligibility determination
(OAHP use only)
Date Initials
Determined Eligible- NR
Determined Not Eligible- NR
Determined Eligible- SR
Determined Not Eligible- SR
Need Data Contributes to eligible NR District
Noncontributing to eligible NR District
1. Resource number: 5BL.6065
2. Temporary resource number: N/A
3. County: Boulder
4. City: Boulder
5. Historic building name: Boulder Public Library
6. Current building name: Boulder Public Library, North Wing
7. Building address: 1001 Arapahoe Avenue, Boulder, Colorado
8. Owner name and address: City of Boulder, PO Box 791, Boulder, CO 80306-0791
II. GEOGRAPHIC INFORMATION
9. P.M. 6th Township 1N Range 71W
SE ¼ of SE ¼ of SE ¼ of Section 25
10. UTM reference: Zone 13: 475934 mE 4429449mN
11. USGS quad name: Boulder
Year: 2013 Map scale: 7.5' 15' Attach photo copy of appropriate map section.
12. Blks 11 & 12 & track adjacent to Blk 11 on the west - Boulder o t & pt lot 9 Smiths addition to Boulder &
vac Riverside St & 10th St & 11th St
13. Boundary Description and Justification: The boundary of the building for the purposes of documentation
includes the building and adjacent built features, excluding the 1992 addition (south wing) to the
Boulder Public Library.
III. Architectural Description
14. Building plan (footprint, shape): Cross-shaped plan
15. Dimensions in feet: Length 170 ft x Width 160 ft
16. Number of stories: 2
17. Primary external wall material(s): Stone
Resource number: 5BL.6065 2
Temporary resource number: N/A
18. Roof configuration: Flat
19. Primary external roof material: Unknown
20. Special features: N/A
21. General architectural description: The original 1961 Boulder Public Library, aka the North Wing, anchors
the northeast end of the City of Boulder’s Municipal Campus. Although it is connected to the southerly
additions of the library by a bridge addition that extends across Boulder Creek, for purposes of this
description it is considered separately, with the bridge and addition built in the 1974 renovation
described as a piece, and the 1992 addition shown only in the attached photographs. Its orientation is
approximately 15 degrees west of a NS axis, and for purposes of description the northwest elevation is
north and etc.
The North Wing is a blocky, low-slung Modern style building that contains some elements of the
International Style but cannot be said to fit neatly into that category, partly now due to modifications
(primarily the alteration and relocation of the main entrance). It sits between Canyon Drive on the north
and Boulder Creek on the south and faces east toward the Municipal Building. Its geometry is
essentially that of a carefully composed collection of squares and rectangles: Massing is organized in a
cruciform plan, with a square center bay surrounded on four sides by similarly sized bays. The central
and west bays carry a second story, while the entrance and north and south bays are a single story. The
entry bay extends to the east and garden courtyards lie on the east sides of the ells.
Exterior wall material is generally red sandstone, with full-height glazing on the east elevation. The
front of the building is lined with a row of tree-like squared concrete columns, with the entry columns
rising a little higher than the others and set forward. These columns are topped with wide, tapered
concrete spans that join at the top to form a long surround that extends along the east façade, turning
to define the sides of the courtyards as well. The courtyards are screened with gridded aggregate
concrete panel set between the columns. The exterior walls of the west bay and second story are faced
in solid exposed aggregate concrete panels, with a full-height section of grid panels set into the west
elevation at the rear parking lot. The main entrance of the North Wing is a fully glazed vestibule entry
with automated sliding doors. Secondary entrances are set into the interior corners of the courtyards,
and are curved, glazed walls with glazed doors, sheltered by projecting awnings. The roof of the
building is flat, with a simple white concrete cornice topping the walls.
A 1974 bridge addition extends from the south bay over Boulder Creek to a raised rectangular
addition that echoes the boxy form of the North Wing. The bridge is supported by square concrete piers
and is concrete and sided with aggregate grid panels that are similar to those found on the exterior of
the North Wing. The addition is also constructed of concrete, and is partially founded at ground level
and, at the creek side, raised on concrete piers, which have been faced in decorative tiles. Exterior walls
of the addition are glazed, concrete panel, and sandstone, with differences in material indicating
differences in interior spaces. The south side of this addition connects to the 1992 addition, which is a
Resource number: 5BL.6065 3
Temporary resource number: N/A
large, multi-story building that now houses most of the library’s events and functions. It was not
recorded for this documentation (see aerial and Photo #18).
22. Architectural style/building type: Modern Movements
23. Landscaping or special setting features: The Municipal Campus is a full city block that contains several
city-owned buildings set in a park-like setting bisected by Boulder Creek and the Boulder Creek Path.
Adjacent features to the North Wing include a rear parking lot and loading dock area. At the front of the
building, a broad paved area lies at the front façade of the building, and a public parking lot and lawn
area reach to the northeast toward the Municipal Building. Sidewalks and walkways, including and
especially the Boulder Creek Path, lace the area around the building. Boulder Creek runs to the south of
the North Wing and under the 1974 bridge addition, providing natural beauty that provides a clear
counterpoint and compliment to the strong, simple geometry of the North Wing and the 1974 Addition.
Surrounding the North Wing more closely are many mature trees of a wide variety, shrubs and lawn.
The courtyards contain gardens: The south courtyard contains a Japanese-influenced garden, with
junipers, benches, and rock-lined walkways. The north courtyard contains a vegetable garden, with
trough beds and a spiral-masonry herb bed.
24. Associated buildings, features, or objects: A concrete ADA ramp with sandstone sidewalls and iron
handrails is located on the north side of the building at the sidewalk. It accesses the side door of the
north courtyard. Although the Municipal Campus contains many other civic buildings, the one that sits
in close conversation with the North Wing is the Municipal Building, which is a similar, Modern-style
building likewise faced in Lyons formation sandstone and also designed by the same architect.
IV. ARCHITECTURAL HISTORY
25. Date of Construction: 1961 Estimate: Actual:
Source of information: “James M. Hunter, Colorado Architects Biographical Sketch” Produced by the
OAHP and History Colorado
26. Architect: James M. Hunter
Source of information: James Hunter, Colorado Architects Biographical Collection, OAHP
27. Builder/Contractor: Mike Campbell Construction
Source of information: https://libraryarchitecture.wikispaces.com/Boulder+Public+Library+-
+1961+Construction
28. Original owner: City of Boulder
Source of information: Boulder County Assessor Records
29. Construction history (include description and dates of major additions, alterations, or demolitions):
The North Wing was constructed in 1961. In 1974, an addition and renovation included the construction
of a bridge addition over Boulder Creek and a large, concrete addition. Research did not reveal major
alterations on the North Wing, although the Children’s Courtyard, which once sat in the southwest
Resource number: 5BL.6065 4
Temporary resource number: N/A
corner of the building’s exterior, was removed. In 1992, the construction of the new south wing of the
library also included major alterations to the North Wing, including the relocation of the entrance to the
center of the east elevation from the interior of the north courtyard, reconfiguration of the courtyard
entrances, and screening of the north courtyard’s east side. Additionally, the interior remodel was
extensive and complete. Today, little visual evidence remains of the original interior, although one
staircase is still in place.
30. Original location Moved Date of move(s):
V. HISTORICAL ASSOCIATIONS
31. Original use(s): Education: Library
32. Intermediate use(s): Education: Library
33. Current use(s): Education: Library
34. Site type(s): Public Library in park setting
35. Historical background: In the post-World War II period, Boulder saw a significant rise in population,
largely due to the growth of the energy and defense industry in the region and improvements in
infrastructure, like the Denver-Boulder Turnpike, which allowed for Denver workers to commute to work from
Boulder. The population expanded from around 13,000 in the 1940 census to more than 37,000 in the 1960
census (Wikipedia), and all bets were on the growth to continue (which it did). With its ability to hold only
about 40,000 volumes, 1906 Carnegie Library was quickly becoming inadequate. In 1959, Boulder voters
approved a 450,000 bond for a new library. Architect James M. Hunter, a well-known local architect whose
work included Regis College in Denver, Baseline Junior High School in Boulder, and the 1951 Municipal
Building, was chosen to design the new building. Educated at the University of Illinois, whose architecture
school emphasized European modernism, Hunter’s talent for using local materials in the service of modern
design was to come into play in the design for the new library. Choosing the site was contentious: much
discussion went into putting it in Central Park, but the public wanted open space in the city, so instead it was
decided that the Library would be sited to face the Municipal Building (Gralapp 2007). Hunter’s vision was for
more than a library; in addition, for space allowing the book collections to double in size, his plan included
gallery and event space. In 1961, the 28,300 sf library was completed at a cost of $486,437.19. The
contractor was Mike Campbell Construction, of Denver. The library included a children's department, adult
reading room, cataloging room, reference room, central services area, and auditorium, garage, stack area,
three meeting rooms, a music room, and storage. Offices were located on the mezzanine. In addition to
Library Director Claude Settlemire and Associate Director and Children’s Librarian Marcelee Gralapp, the
staff included two librarians and 13 library technicians (Celsus 2016B).
Settlemire left the library in 1966 and Gralapp took his place (she would hold the job until 2003,
overseeing two more significant expansions). By 1970, Boulder’s population had again almost doubled, to
66,000. The library needed to expand, and under Gralaap’s leadership it was determined that the best course
was to build a new Children’s department and a non-print media center. The problem was keeping the
Resource number: 5BL.6065 5
Temporary resource number: N/A
addition above water in a 100-year floodplain. In 1971, voters approved an addition to the library and the
architecture firm of Gaston and Associates, along with the structural engineering firm of Johnson-Voiland-
Archuleta and Associates designed the addition to span the creek, as a bridge, connecting to a concrete
building on the south side of the creek. The addition added 15,000 needed square feet to the library, which
could now offer space for users to sit comfortably and listen to recordings or view visual media (Celsus
2016A). More importantly, the addition would prove worthy almost 40 years later, when the Boulder Public
Library was noted to have sustained no significant damage in the 100-year flood of 2013 (Library Journal,
2013).
In 1992, the large South Wing was added, and many, if not most, library services were relocated to that
building.
36. Sources of information:
x “James M. Hunter, Colorado Architects Biographical Sketch” Produced by the OAHP and History
Colorado
x Celsus, A Library Architecture Resource
o 2016A. The Boulder Public Library 1974 Renovation. 2016.
https://libraryarchitecture.wikispaces.com/Boulder+Public+Library+1974+Renovation+and+Ne
w+Addition. Accessed July 28, 2016.
o 2016B. The Boulder Public Library – 1961 Construction. 2016.
https://libraryarchitecture.wikispaces.com/Boulder+Public+Library+-+1961+Construction.
Accessed July 28, 2016.
x “Boulder, Colorado”. https://en.wikipedia.org/wiki/Boulder,_Colorado#History. Accessed July 31, 2016.
x Marcelee Gralaap, oral history. Boulder Public Library, Maria Rogers Oral History Program. Interview
OH 1007-V.
x Noel, Thomas J. and Dan W. Corson. 1999. Boulder County: An Illustrated History. Heritage Media Corp.
x “After Floods, Colorado Libraries Assess the Damage, Step in With Services” by Ian Chant. Library
Journal. Octover 8, 2013. http://lj.libraryjournal.com/2013/10/public-services/after-floods-colorado-
libraries-assess-the-damage-step-in-with-services/. Accessed July 31, 2016.
VI. SIGNIFICANCE
37. Local landmark designation: Yes No Date of designation:
Designating authority:
38. Applicable National Register Criteria:
A. Associated with events that have made a significant contribution to the broad pattern of our history;
B. Associated with the lives of persons significant in our past;
Resource number: 5BL.6065 6
Temporary resource number: N/A
C. Embodies the distinctive characteristics of a type, period, or method of construction, or represents
the work of a master, or that possess high artistic values, or represents a significant and
distinguishable entity whose components may lack individual distinction; or
D. Has yielded, or may be likely to yield, information important in history or prehistory.
Qualifies under Criteria Considerations A through G (see Manual)
Does not meet any of the above National Register criteria
39. Area(s) of significance: Community Planning and Development; Architecture
40. Period of significance: 1961 to 1974 (Community Planning and Development) 1961 (Architecture);
41. Level of significance: National State Local
42. Statement of significance: The North Wing of the Boulder Public Library is significant under Criterion A, at
the local level, in the area of Community Planning and Development for the important effort undertaken
by the City of Boulder to accommodate the city’s cultural and educational needs in the face of
exploding population growth in the post-World War II period. Additionally, both the North Wing the 1974
renovation and bridge building should be included as eligible under Criterion C. The North Wing is
significant at the local level in the area of Architecture as an important example of Modern architecture
that conveys high artistic value and as the work of a master for its association with architect James M.
Hunter. The 1974 addition is significant at the local level in the areas of architecture and engineering, for
its innovative architecture that embodies distinctive design and construction methods and also
possesses high artistic value. In the case of the 1974 addition, Criteria Consideration G should apply, as
the addition is not yet 50 years old, but should be considered to be endangered in the event of another
flood.
43. Assessment of historic physical integrity related to significance: Although the North Wing has suffered
impacts to its integrity of design, most severely through the relocation of the primary entrance and the
redesign of the courtyard entrances, it still has a preponderance of its original design, materials,
workmanship, and feeling. The columns, courtyard screens, cornice, and red sandstone masonry are all
still intact, the location, setting, and association have not changed, and the building’s basic form easily
conveys its history as post-World War II modern architecture. Additionally, the integrity of the 1974
addition still allows it to convey its historic significance as a work of modern architecture and an
arresting and innovative work of structural engineering.
VII. NATIONAL REGISTER ELIGIBILITY ASSESSMENT
44. National Register eligibility field assessment:
Eligible Not Eligible Need Data
45. Is there National Register district potential? Yes No
Discuss: With the Municipal Building, the North Wing and the 1974 Addition carry sufficient integrity
and significance to be considered a potential historic district.
Resource number: 5BL.6065 7
Temporary resource number: N/A
If there is National Register district potential, is this building: Contributing Noncontributing
46. If the building is in existing National Register district, is it: Contributing Noncontributing
VIII. RECORDING INFORMATION
47. Photograph numbers: 1 through 18 (shown); 924 through 985 (on file)
Negatives filed at: Corbett AHS, Inc., Denver, CO
48. Report title: N/A
49. Date(s): May 11, 2016; July 31, 2016
50. Recorder(s): Kathleen Corbett
51. Organization: Corbett AHS, Inc.
52. Address: 4659 E. Amherst Avenue
53. Phone number(s): (925) 351-7417
NOTE: Please include a sketch map, a photocopy of the USGS quad map indicating resource location, and
photographs.
History Colorado - Office of Archaeology & Historic Preservation
1200 Broadway, Denver, CO 80203 (303) 866-3395
Resource number: 5BL.6065 8
Temporary resource number: N/A
Topo Map
Resource number: 5BL.6065 9
Temporary resource number: N/A
Sketch Map
Resource number: 5BL.6065 10
Temporary resource number: N/A
Aerial Map
Resource number: 5BL.6065 11
Temporary resource number: N/A
Photograph Location Key
Resource number: 5BL.6065 12
Temporary resource number: N/A
Photographs
Photo #: 1
Date: 7/31/2016
Direction Facing: WSW
P7310924
Front façade of the
North Wing
Photo #: 2
Date: 7/31/2016
Direction Facing: NNW
P7310925
Front Façade, showing
columns and concrete
spans and front
entrance
Resource number: 5BL.6065 13
Temporary resource number: N/A
Photo #: 3
Date: 7/31/2016
Direction Facing: NW
P7310929
Side entrance to south
courtyard
Photo #: 4
Date: 4/22/2016
Direction Facing: ENE
P4220696
South side of the
building, at the juncture
with the bridge
addition, Boulder Creek
Path running
underneath
Resource number: 5BL.6065 14
Temporary resource number: N/A
Photo #: 5
Date: 7/31/2016
Direction Facing: ESE
P7310938
Rear elevation of the
building, with rear
parking lot and loading
dock.
Photo #: 6
Date: 7/31/2016
Direction Facing: SE
P7310940
Northwest corner of the
building. Note cornice
and Lyons formation
sandstone masonry
Resource number: 5BL.6065 15
Temporary resource number: N/A
Photo #: 7
Date: 7/31/2016
Direction Facing: SSE
P7310941
North side of the building at the
side entry to the north
courtyard
Photo #: 8
Date: 7/31/2016
Direction Facing: ENE
P7310949
Interior.
Main entrance, looking out
from the gallery
Resource number: 5BL.6065 16
Temporary resource number: N/A
Photo #: 9
Date: 7/31/2016
Direction Facing: WSW
P7310951
Interior.
Gallery at the main
entrance.
Photo #: 10
Date: 7/31/2016
Direction Facing: WSW
P7310954
Interior.
Original Staircase
Resource number: 5BL.6065 17
Temporary resource number: N/A
Photo #: 11
Date: 7/31/2016
Direction Facing: N
P7310952
Interior.
Curved glazed entry to
the north courtyard
Photo #: 12
Date: 7/31/2016
Direction Facing: NE
P7310956
North Courtyard
Resource number: 5BL.6065 18
Temporary resource number: N/A
Photo #: 13
Date: 4/22/2016
Direction Facing: NW
P4220685
South courtyard looking
toward entrance to
building.
Photo #: 14
Date: 7/31/2016
Direction Facing: SE
P7310934
1974 bridge and raised
concrete addition
Resource number: 5BL.6065 19
Temporary resource number: N/A
Photo #: 15
Date: 7/31/2016
Direction Facing: SSE
P7310931
View of Boulder Creek
running under the 1974
bridge addition
Photo #: 16
Date: 7/31/2016
Direction Facing: N
P7310978
1974 Bridge Addition
Resource number: 5BL.6065 20
Temporary resource number: N/A
Photo #: 17
Date: 7/31/2016
Direction Facing: WSW
P7310969
1974 Addition
Photo #: 18
Date: 7/31/2016
Direction Facing: S
P7310983
Resource number: 5BL.6065 21
Temporary resource number: N/A
Historic Photographs: key to locations and directions
Resource number: 5BL.6065 22
Temporary resource number: N/A
Historic Photographs
Photo #: 1
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local History
Front façade of the
library at night.
Photo #:
Date: 1961
Direction Facing:
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Looking into the entry
hall from the central
area
Resource number: 5BL.6065 23
Temporary resource number: N/A
Photo #: 4
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Seating in the Fiction
area
Photo #: 5
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Reference area
Resource number: 5BL.6065 24
Temporary resource number: N/A
Photo #: 6
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
The Children’s area of
the library, facing the
Children’s courtyard.
Photo #: 7
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Children’s Courtyard
Resource number: 5BL.6065 25
Temporary resource number: N/A
Photo #: 8
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Auditorium and gallery
Photo #: 9
Date: 1962
Direction Facing:
Photo ID: Photograph
courtesy of the
Carnegie Branch Library
for Local History.
Looking into the south
courtyard from the
fiction area
Resource number: 5BL.6065 26
Temporary resource number: N/A
Photo #: 10
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Looking down toward
the open central area
from the second floor
stacks.
Photo #: 11
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
Looking down into the
Fiction stacks and
seating from the central
area.
Resource number: 5BL.6065 27
Temporary resource number: N/A
Photo not mapped
Date: 1962
Photograph courtesy of
the Carnegie Branch
Library for Local
History.
James Hunter, architect
of the 1961 BPL, seated,
and Claude Settlemire,
Boulder Public Library
director, standing, in
the east (fiction) area of
the new library.
Photo not mapped
Date: circa 1974
Blueprint image of the
library plan, from the
1974 renovation.
Source: Celsus, A Library Architecture Resource: The Boulder Public Library 1974 Renovation. Accessed July 28, 2016.
https://libraryarchitecture.wikispaces.com/Boulder+Public+Library+1974+Renovation+and+New+Addition
Resource number: 5BL.6065 28
Temporary resource number: N/A
Photo not mapped
Date: 1974
Photograph courtesy of the
Carnegie Branch Library for
Local History.
Looking down from the upper
level stacks to the reference
area below.
Photo not mapped
Date: 1974
Photograph courtesy of the
Carnegie Branch Library for
Local History.
Children in the Children’s area
of the Boulder Public Library.