Structure 251320000000000 · Lincoln County, OK

U.s. 377 / S.h. 99 over Deep Fork River

Carries U.s. 377 / S.h. 99 over Deep Fork River, 14.2 Mi N Jct US 62.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT602 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

602 ft end to end, longest span 133 ft: about 1.7 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199828 years old
Length602.0 ft183.5 m
Daily traffic1,350counted 2022
Last inspectedAugust 2024every 24 months

Location

StateOklahoma
CountyLincoln
Location14.2 Mi N Jct US 62
CarriesU.s. 377 / S.h. 99
CrossesDeep Fork River
Coordinates35.68492, -96.66296

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length602.0 ft (183.5 m)
Max Span132.9 ft (40.5 m)
Deck Width42.3 ft (12.9 m)
Deck Area2367.2 sq m
Main Spans5
Year Built1998

Traffic

Avg Daily Traffic1,350 (2022)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number251320000000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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