Structure 150460025303085 · Comal County, TX

US 281 Sbml over FM 1863

Carries US 281 Sbml over FM 1863, 3.90 Mi S Of SH 46.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT269 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

269 ft end to end: 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.

Built199927 years old
Length269.0 ft82 m
Daily traffic17,913counted 2019
Last inspectedJune 2022every 48 months

Location

StateTexas
CountyComal
Location3.90 Mi S Of SH 46
CarriesUS 281 Sbml
CrossesFM 1863
Coordinates29.74324, -98.43506

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length269.0 ft (82 m)
Max Span126.0 ft (38.4 m)
Deck Width41.3 ft (12.6 m)
Deck Area1033.2 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic17,913 (2019)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number150460025303085

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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