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)

U.S. 270

Good

Over: CREEK

11.5 MI E BEAVER C/L, Harper, OK

Built 1932 Load: 31.2 t ADT: 3,000

E0120

Good

Over: BUFFALO CREEK TRIB.

.3E 2.5N OF SELMAN, Harper, OK

Built 1997 Load: 31.8 t ADT: 50

E0030

Good

Over: REDOUBT CREEK

9N 9.1W OF BUFFALO, Harper, OK

Built 2004 Load: 31.8 t ADT: 75

N1710

Good

Over: KIOWA CREEK

4.8W 1.8N OF LAVERNE, Harper, OK

Built 2013 Load: 31.8 t ADT: 100

U.S. 183

Good

Over: CREEK

7.4 MI N JCT US 64, Harper, OK

Built 1933 Load: 32.5 t ADT: 640

U.S. 270

Good

Over: CREEK

15.4 MI E BEAVER C/L, Harper, OK

Built 1932 Load: 32.7 t ADT: 3,100

E0050

Good

Over: WILLOW CREEK TRIB.

6N 1.4E OF US64/SELMAN RD, Harper, OK

Built 2001 Load: 32.7 t ADT: 25

U.S. 183

Good

Over: CREEK

.2NE OF JCT US64W/US183, Harper, OK

Built 2003 Load: 32.7 t ADT: 4,900

U.S. 283

Good

Over: SPRING CREEK

2.0MI. N. JCT. U.S. 270, Harper, OK

Built 2009 Load: 32.7 t ADT: 2,000

U.S. 64

Good

Over: BADGER CREEK

5.2E OF JCT. U.S. 183, Harper, OK

Built 2009 Load: 32.7 t ADT: 820

U.S. 270

Good

Over: CREEK

3.9 MI E BEAVER C/L, Harper, OK

Built 1988 Load: 35.4 t ADT: 2,300

E0160

Good

Over: DOBY CREEK TRIB.

2S .2W OF JCT US64/SH46, Harper, OK

Built 1998 Load: 35.4 t ADT: 100

E0220

Good

Over: CREEK

7.5S 1.4E OF SELMAN, Harper, OK

Built 2009 Load: 35.4 t ADT: 75

N1900

Good

Over: BUFFALO CREEK

.5W .9N OF BUFFALO, Harper, OK

Built 2016 Load: 36.3 t ADT: 75

S.H. 149

Good

Over: BEAVER RIVER

2.5 E JCT U.S. 283, Harper, OK

Built 2014 Load: 36.5 t ADT: 410

E0020

Good

Over: SNAKE CREEK

10N 3W OF BUFFALO, Harper, OK

Built 1996 Load: 38.1 t ADT: 24

U.S. 64

Good

Over: LITTLE COTTONWOOD CREEK

3.9NE OF JCT US64W/US183, Harper, OK

Built 1933 Load: 38.3 t ADT: 820

3016C

Good

Over: BUFFALO CREEK TRIB.

2.N 3.2W OF BUFFALO, Harper, OK

Built 1993 Load: 39.0 t ADT: 75

E0200

Good

Over: SLEEPING BEAR CREEK

9S & 1W OF JCT. SH34/US64, Harper, OK

Built 2000 Load: 39.0 t ADT: 50

U.S. 64

Good

Over: DRY BUFFALO CREEK

18.2E OF BEAVER C/L, Harper, OK

Built 2000 Load: 39.9 t ADT: 920

U.S. 283

Good

Over: CIMARRON RIVER

10.4 MI N JCT US 64, Harper, OK

Built 1998 Load: 40.8 t ADT: 690

E0010

Good

Over: CREEK

BORDER BRIDGE, Harper, OK

Built 2003 Load: 40.8 t ADT: 24

U.S. 64

Good

Over: BUFFALO CREEK

14.2E OF BEAVER C/L, Harper, OK

Built 2007 Load: 43.5 t ADT: 810

U.S. 64

Good

Over: CHARLESTON CREEK

11.3NE OF JCT US64W/US183, Harper, OK

Built 1934 Load: 46.4 t ADT: 780

N1980

Good

Over: BUFFALO CREEK

.3W 1.2N OF SELMAN, Harper, OK

Built 1950 Load: 56.2 t ADT: 100

U.S. 64

Good

Over: UNNAMED CREEK

.08 W OF JCTU.S. 183, Harper, OK

Built 2017 Load: 85.8 t ADT: 1,200

E0080

Poor

Over: CREEK

2N10W2N1.6W OF BUFFALO, Harper, OK

Built 1918 Load: 19.1 t ADT: 25

FAS 3012

Poor

Over: CREEK

1.W 2.1N OF SH46 & US64, Harper, OK

Built 1987 Load: 19.1 t ADT: 100

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