Structure 40910027507108 · Gray County, TX

SH 70 over IH 40

Carries SH 70 over IH 40, 6.8 Mi E Of Carson Cl.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT310 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

310 ft end to end, longest span 95 ft: about 4 semi-trucks nose to tail. 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.

Built197452 years old
Length310.0 ft94.5 m
Daily traffic592counted 2023
Last inspectedNovember 2024every 48 months

Location

StateTexas
CountyGray
Location6.8 Mi E Of Carson Cl
CarriesSH 70
CrossesIH 40
Coordinates35.18302, -100.97136

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length310.0 ft (94.5 m)
Max Span95.1 ft (29 m)
Deck Width62.3 ft (19 m)
Deck Area1795.5 sq m
Main Spans2
Year Built1974

Traffic

Avg Daily Traffic592 (2023)
Truck Traffic58%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number040910027507108

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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