Structure 91610AA2272001 · McLennan County, TX

Old Marlin Road over Shaw Creek

Carries Old Marlin Road over Shaw Creek, 0.20 Mi NW Of FM 1860.

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
CAR · 15 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

64 ft end to end, longest span 32 ft. 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 multi-beam bridge.

Built201115 years old
Length64.0 ft19.5 m
Daily traffic123counted 2020
Last inspectedFebruary 2024every 24 months

Location

StateTexas
CountyMcLennan
Location0.20 Mi NW Of FM 1860
CarriesOld Marlin Road
CrossesShaw Creek
Coordinates31.52192, -97.02182

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length64.0 ft (19.5 m)
Max Span32.2 ft (9.8 m)
Deck Width25.9 ft (7.9 m)
Deck Area154.1 sq m
Main Spans2
Year Built2011

Traffic

Avg Daily Traffic123 (2020)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number091610AA2272001

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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