Structure 81150000505150 · Howard County, TX

IH 20 WB over Webb Afb Rr Spur

Carries IH 20 WB over Webb Afb Rr Spur, 2.1 Mi W Of US 87.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT297 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

297 ft end to end, longest span 65 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.

Built196462 years old
Length296.9 ft90.5 m
Daily traffic12,117counted 2019
Last inspectedJune 2023every 24 months

Location

StateTexas
CountyHoward
Location2.1 Mi W Of US 87
CarriesIH 20 WB
CrossesWebb Afb Rr Spur
Coordinates32.24536, -101.51686

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length296.9 ft (90.5 m)
Max Span65.0 ft (19.8 m)
Deck Width40.4 ft (12.3 m)
Deck Area1113.2 sq m
Main Spans5
Year Built1964

Traffic

Avg Daily Traffic12,117 (2019)
Truck Traffic28%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number081150000505150

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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