Structure 91100088802008 · Hill County, TX

FM 309 over Cottonwood Creek

Carries FM 309 over Cottonwood Creek, 3.5 Mi SW Of FM 934.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT125 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

125 ft end to end, longest span 25 ft. 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 slab bridge.

Built195670 years old
Length125.0 ft38.1 m
Daily traffic266counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateTexas
CountyHill
Location3.5 Mi SW Of FM 934
CarriesFM 309
CrossesCottonwood Creek
Coordinates32.07033, -97.24671

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length125.0 ft (38.1 m)
Max Span24.9 ft (7.6 m)
Deck Width25.3 ft (7.7 m)
Deck Area293.4 sq m
Main Spans5
Year Built1956

Traffic

Avg Daily Traffic266 (2020)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical2 — Bridge closed (monitoring)
Structure Number091100088802008

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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