Harper County, OK

128 public highway bridges

Harper County Bridge Snapshot

Harper County, Oklahoma contains 128 public highway bridges in the FHWA National Bridge Inventory. Roughly 33.6% are rated “Good,” 64.8% “Fair,” 1.6% “Poor,” and 1.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in OK are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

128

Total Bridges

33.6%

Good

1.6%

Poor

1.6%

Structurally Deficient

Condition Distribution

Good

33.6% (43)

Fair

64.8% (83)

Poor

1.6% (2)

SD

1.6% (2)

All Bridges (128)

Sort:

U.S. 283

Over: CREEK

2.5 MI N JCT US 64, Harper, OK

Built 1933 Load: 35.7 t ADT: 790

U.S. 283

Over: CREEK

5.1 MI N JCT US 64, Harper, OK

Built 1933 Load: 35.7 t ADT: 790

U.S. 64

Over: HUCKABY CREEK

9.5NE OF JCT US64W/US183, Harper, OK

Built 1934 Load: 36.0 t ADT: 820

N1950

Over: CREEK

.5S 4.5E 10.5S OF BUFFALO, Harper, OK

Built 2017 Load: 36.3 t ADT: 75

E0010

Over: CREEK

BORDER BRIDGE, Harper, OK

Built 1989 Load: 36.3 t ADT: 24

N1950

Over: CREEK

.5S 3W 5.5S OF SELMAN, Harper, OK

Built 2009 Load: 38.1 t ADT: 75

U.S. 64

Over: DAVIS CREEK

2.8NE OF JCT US64W/US183, Harper, OK

Built 1933 Load: 38.3 t ADT: 820

U.S. 270

Over: SAND CREEK

18 MI E BEAVER C/L, Harper, OK

Built 1987 Load: 40.8 t ADT: 3,100

U.S. 270

Over: OTTER CREEK

13.6 MI E BEAVER C/L, Harper, OK

Built 1987 Load: 40.8 t ADT: 3,000

N1840

Over: CREEK

10N; 7W; .1N OF BUFFALO, Harper, OK

Built 2008 Load: 40.8 t ADT: 100

U.S. 270

Over: CLEAR CREEK

8.5 MI E BEAVER C/L, Harper, OK

Built 1985 Load: 41.7 t ADT: 3,000

U.S. 270

Over: CLEAR CREEK O'FLOW

8.7 MI E BEAVER C/L, Harper, OK

Built 1985 Load: 41.7 t ADT: 3,000

S.H. 34

Over: CREEK

5.4 MI N WOODWARD CO, Harper, OK

Built 1954 Load: 42.4 t ADT: 410

U.S. 64

Over: BUFFALO CREEK

1.6NE OF JCT US64W/US183, Harper, OK

Built 1995 Load: 42.6 t ADT: 1,500

S.H. 46

Over: BEAVER RIVER

0.4 MI N JCT US 270, Harper, OK

Built 1997 Load: 43.5 t ADT: 260

E0190

Over: BUFFALO CREEK TRIB.

6.5S 2.8W OF BUFFALO, Harper, OK

Built 1985 Load: 48.1 t ADT: 50

N1875

Over: CREEK

6.5S 2.3W OF BUFFALO, Harper, OK

Built 1986 Load: 48.1 t ADT: 100

N1950

Over: SAND CREEK

4.5E 8.1S of BUFFALO, Harper, OK

Built 2022 Load: 48.1 t ADT: 24

N1810

Over: REDOUBT CREEK

8N 10W .1S of BUFFALO, Harper, OK

Built 2022 Load: 48.1 t ADT: 24

E0130

Over: CREEK

.5S .8E OF BUFFALO, Harper, OK

Built 1979 Load: 49.0 t ADT: 100

N2020

Over: CREEK

30N2020E0080008, Harper, OK

Built 2009 Load: 49.0 t ADT: 100

N1907 (MAPLE ST.

Over: CREEK

2BLKS E. 0.3N 64 & 183, Harper, OK

Built 1975 Load: 52.6 t ADT: 200

U.S. 64

Over: COTTONWOOD CREEK

14.6NE OF JCT US64W/US183, Harper, OK

Built 1934 Load: 54.7 t ADT: 600

E0050

Over: CREEK

2.8W 2S 0.3W WILLARD, Harper, OK

Built 2009 Load: 55.3 t ADT: 100

E0050

Over: CREEK

6N; 3/4E OF 183/64 JCT, Harper, OK

Built 2010 Load: 55.3 t ADT: 24

E0070

Over: CREEK

5.8N 1.7E DOLBY SPRGS PK, Harper, OK

Built 2009 Load: 56.2 t ADT: 24

U.S. 64

Over: CREEK

2.2NE OF JCT US 64W/US183, Harper, OK

Built 1933 Load: 58.1 t ADT: 820

E0030

Over: SNAKE CREEK

9N 4.5W OF BUFFALO, Harper, OK

Built 1992 Load: 59.9 t ADT: 100

E0020

Over: CREEK

2.3E 1N .4E OF WILLARD, Harper, OK

Built 1987 Load: 59.9 t ADT: 45

S.H. 34

Over: CREEK

3.7 MI N WOODWARD CO, Harper, OK

Built 1954 Load: 65.4 t ADT: 420

E0242

Over: CREEK

4E 11.2S .5W OF BUFFALO, Harper, OK

Built 2017 Load: 68.9 t ADT: 100

E0060

Over: CREEK

5N 2.75W OF BUFFALO, Harper, OK

Built 2017 Load: 68.9 t ADT: 25

S.H. 34

Over: GILBERT CREEK

7.5 MI N WOODWARD CO, Harper, OK

Built 1954 Load: 86.3 t ADT: 410

N1760

Over: CREEK

5.7N OF US64 & 283S, Harper, OK

Built 1946 Load: 19.1 t ADT: 100

N1760

Over: CREEK

2.8N US64 &283S, Harper, OK

Built 1948 Load: 19.1 t ADT: 100

FAS 3008

Over: CREEK

4.6W OF LAVERNE, Harper, OK

Built 1954 Load: 19.1 t ADT: 200

FAS 3014

Over: REDOUBT CREEK

6.3N OF US 64 & 283S, Harper, OK

Built 1965 Load: 19.1 t ADT: 100

FAS 3019

Over: CREEK

.5S 4.5E .8S OF BUFFALO, Harper, OK

Built 1969 Load: 19.1 t ADT: 100

E0200

Over: BUFFALO CREEK TRIB.

7S 2.5W OF BUFFALO, Harper, OK

Built 1983 Load: 19.1 t ADT: 50

E0220

Over: CREEK

.5S 1.2W 7S 1.2W O SELMAN, Harper, OK

Built 1983 Load: 19.1 t ADT: 75

FAS 3020

Over: CREEK

1.5S 4.5E .2S OF BUFFALO, Harper, OK

Built 1984 Load: 19.1 t ADT: 75

FAS 3012

Over: CREEK

1.W 1.1N OF SH46 & US64, Harper, OK

Built 1986 Load: 19.1 t ADT: 125

3014C

Over: CREEK

3.5N 4.E 2.1N OF SELMAN, Harper, OK

Built 1989 Load: 19.1 t ADT: 50

E0130

Over: CREEK

.5S 2.8W OF BUFFALO, Harper, OK

Built 1998 Load: 19.1 t ADT: 100

E0200

Over: CREEK

9S .3E OF JCT SH34/US64, Harper, OK

Built 2009 Load: 19.1 t ADT: 24

U.S. 283

Over: CREEK

7.5 MI N JCT US 270, Harper, OK

Built 1939 Load: 19.6 t ADT: 1,700

E0120

Over: CREEK

.3W2.5N4.8E OF SELMAN, Harper, OK

Built 2004 Load: 20.9 t ADT: 50

3024C

Over: BUFFALO CREEK TRIB.

4S 4.7W BUFFALO, Harper, OK

Built 1997 Load: 28.1 t ADT: 50

S.H. 34

Over: BUFFALO CREEK

12.8 N WOODWARD C/L, Harper, OK

Built 2016 Load: 28.1 t ADT: 370

E0220

Over: SLEEPING BEAR CREEK

.3W 7.5S 2.5E OF SELMAN, Harper, OK

Built 1994 Load: 29.9 t ADT: 75

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026