Structure 121700033804218 · Montgomery County, TX

SH 105 over Cagle Branch Crk

Carries SH 105 over Cagle Branch Crk, 0.20 Mi E. Of FM 1484.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT117 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 8/9

117 ft end to end. 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 bridge of this kind.

Built20242 years old
Length117.1 ft35.7 m
Daily traffic12,598counted 2023
Last inspectedOctober 2024every 24 months

Location

StateTexas
CountyMontgomery
Location0.20 Mi E. Of FM 1484
CarriesSH 105
CrossesCagle Branch Crk
Coordinates30.33278, -95.32494

Physical Characteristics

MaterialOther
DesignOther
Total Length117.1 ft (35.7 m)
Max Span117.1 ft (35.7 m)
Deck Width39.0 ft (11.9 m)
Deck Area424.8 sq m
Main Spans1
Year Built2024

Traffic

Avg Daily Traffic12,598 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical6 — Scour calculated, stable
Structure Number121700033804218

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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