Structure 81150000506084 · Howard County, TX

IH 20 WB over Moss Lake RD

Carries IH 20 WB over Moss Lake RD, 4.0 Mi W Of FM 820.

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
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

114 ft end to end, longest span 45 ft. Lengths and the car 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 slab bridge.

Built195967 years old
Length113.8 ft34.7 m
Daily traffic11,738counted 2019
Last inspectedJune 2023every 24 months

Location

StateTexas
CountyHoward
Location4.0 Mi W Of FM 820
CarriesIH 20 WB
CrossesMoss Lake RD
Coordinates32.27481, -101.37055

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length113.8 ft (34.7 m)
Max Span44.9 ft (13.7 m)
Deck Width40.0 ft (12.2 m)
Deck Area423.3 sq m
Main Spans3
Year Built1959

Traffic

Avg Daily Traffic11,738 (2019)
Truck Traffic34%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number081150000506084

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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