Structure 121700305002003 · Montgomery County, TX

FM 2978 over Dry Creek

Carries FM 2978 over Dry Creek, 3.90 Mi S Of FM 1488.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT284 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

284 ft end to end, longest span 41 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.

Built1977rebuilt 2021
Length284.1 ft86.6 m
Daily traffic33,210counted 2024
Last inspectedAugust 2024every 24 months

Location

StateTexas
CountyMontgomery
Location3.90 Mi S Of FM 1488
CarriesFM 2978
CrossesDry Creek
Coordinates30.17579, -95.60095

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length284.1 ft (86.6 m)
Max Span41.0 ft (12.5 m)
Deck Width79.1 ft (24.1 m)
Deck Area2087.1 sq m
Main Spans7
Year Built1977 (reconstructed 2021)

Traffic

Avg Daily Traffic33,210 (2024)
Truck Traffic5%
Lanes On Bridge5

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121700305002003

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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