Structure 121700305002002 · Montgomery County, TX

FM 2978 over Bear Branch

Carries FM 2978 over Bear Branch, 1.3 Mi S Of FM 1488.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 41 ft across with 6 openings. 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, so those are drawn as typical for a culvert.

Built1977rebuilt 2021
Length41.3 ft12.6 m
Daily traffic23,400counted 2020
Last inspectedDecember 2024every 24 months

Location

StateTexas
CountyMontgomery
Location1.3 Mi S Of FM 1488
CarriesFM 2978
CrossesBear Branch
Coordinates30.20590, -95.57839

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length41.3 ft (12.6 m)
Max Span5.9 ft (1.8 m)
Deck Width91.9 ft (28 m)
Deck Area352.8 sq m
Main Spans6
Year Built1977 (reconstructed 2021)

Traffic

Avg Daily Traffic23,400 (2020)
Truck Traffic9%
Lanes On Bridge5

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121700305002002

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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