Structure 81770000602348 · Nolan County, TX

US 84 SB over IH 20

Carries US 84 SB over IH 20, 6.46 Mi W Of FM 70.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,499 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

1,499 ft end to end, longest span 252 ft: about 4.2 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.

Built20242 years old
Length1499.0 ft456.9 m
Daily traffic10,791counted 2022
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyNolan
Location6.46 Mi W Of FM 70
CarriesUS 84 SB
CrossesIH 20
Coordinates32.44594, -100.50455

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1499.0 ft (456.9 m)
Max Span252.0 ft (76.8 m)
Deck Width36.1 ft (11 m)
Deck Area5025.9 sq m
Main Spans2
Year Built2024

Traffic

Avg Daily Traffic10,791 (2022)
Truck Traffic26%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number081770000602348

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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