Harmon County, OK
106 public highway bridges
Harmon County Bridge Snapshot
Harmon County, Oklahoma contains 106 public highway bridges in the FHWA National Bridge Inventory. Roughly 75.5% are rated “Good,” 23.6% “Fair,” 0.9% “Poor,” and 0.9% 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.
Condition Distribution
All Bridges (106)
S.H. 30
GoodOver: ELM FORK OF RED RIVER
7.8 N JCTS.H. 9, Harmon, OK
U.S. 62
GoodOver: CREEK
3.7 MI E TEXAS ST. LINE, Harmon, OK
S.H. 30
GoodOver: GRAPE CREEK
2.9 MI N JCT S.H. 9, Harmon, OK
N1684
GoodOver: RED RIVER
OKLA-TEXAS STATE LINE, Harmon, OK
U.S. 62
GoodOver: CREEK
2.7 MI W JACKSON C/L, Harmon, OK
2932C
PoorOver: WEST FORK SANDY CREEK
3.0 E 2.7 S OF HOLLIS, Harmon, OK
Read our methodology — how this data is sourced, computed, and verified.
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| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |