Structure 230470102904005 · Comanche County, TX

FM 573 over Mercer Creek

Carries FM 573 over Mercer Creek, 0.95 Mi S Of FM 590.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT120 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

120 ft end to end, longest span 40 ft. 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.

Built196165 years old
Length120.1 ft36.6 m
Daily traffic174counted 2020
Last inspectedOctober 2023every 24 months

Location

StateTexas
CountyComanche
Location0.95 Mi S Of FM 590
CarriesFM 573
CrossesMercer Creek
Coordinates31.85382, -98.62965

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span40.0 ft (12.2 m)
Deck Width24.6 ft (7.5 m)
Deck Area274.5 sq m
Main Spans3
Year Built1961

Traffic

Avg Daily Traffic174 (2020)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number230470102904005

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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