Structure 121700033811114 · Montgomery County, TX

Lp 336 over West Tributary #1

Carries Lp 336 over West Tributary #1, 1.4 Mi S Of FM 2854.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT129 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

129 ft end to end, longest span 43 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 multi-beam bridge.

Built1988rebuilt 2014
Length128.9 ft39.3 m
Daily traffic16,125counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateTexas
CountyMontgomery
Location1.4 Mi S Of FM 2854
CarriesLp 336
CrossesWest Tributary #1
Coordinates30.29514, -95.50429

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length128.9 ft (39.3 m)
Max Span43.0 ft (13.1 m)
Deck Width71.9 ft (21.9 m)
Deck Area860.7 sq m
Main Spans3
Year Built1988 (reconstructed 2014)

Traffic

Avg Daily Traffic16,125 (2023)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number121700033811114

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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