Structure 150460025303051 · Comal County, TX

US 281 Nbml over Cibolo Creek

Carries US 281 Nbml over Cibolo Creek, 1.75 Mi S Of FM 1863.

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
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT587 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

587 ft end to end, longest span 69 ft: about 1.6 football fields. 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.

Built197848 years old
Length586.9 ft178.9 m
Daily traffic23,495counted 2023
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyComal
Location1.75 Mi S Of FM 1863
CarriesUS 281 Nbml
CrossesCibolo Creek
Coordinates29.71976, -98.44355

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length586.9 ft (178.9 m)
Max Span68.9 ft (21 m)
Deck Width44.3 ft (13.5 m)
Deck Area2415.2 sq m
Main Spans8
Year Built1978

Traffic

Avg Daily Traffic23,495 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number150460025303051

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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