Structure 180570058102073 · Dallas County, TX

Lp 12 SB over West Fork Trinity River

Carries Lp 12 SB over West Fork Trinity River, 1.1 Mi N Of IH 30.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,845 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

2,845 ft end to end, longest span 340 ft: about 7.9 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.

Built197650 years old
Length2845.1 ft867.2 m
Daily traffic67,772counted 2019
Last inspectedFebruary 2024every 24 months

Location

StateTexas
CountyDallas
Location1.1 Mi N Of IH 30
CarriesLp 12 SB
CrossesWest Fork Trinity River
Coordinates32.78572, -96.91881

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length2845.1 ft (867.2 m)
Max Span339.9 ft (103.6 m)
Deck Width62.3 ft (19 m)
Deck Area16476.8 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic67,772 (2019)
Truck Traffic7%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number180570058102073

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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