FM 491 over Arroyo Colorado

Fair Condition69 years old4,190 vehicles/day

Location

StateTexas
CountyHidalgo
Location1.50 Mi S Of Bu 83
CarriesFM 491
CrossesArroyo Colorado
Coordinates26.12782, -97.90154

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical6 — Scour calculated, stable

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length243.1 ft (74.1 m)
Max Span29.9 ft (9.1 m)
Deck Width50.2 ft (15.3 m)
Deck Area1133.7 sq m
Main Spans8
Year Built1957 (reconstructed 2002)

Traffic

Avg Daily Traffic4,190 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure Number211090086105008

Nearby Bridges

Base Line RD over Arroyo Colorado 0.5 mi Fair Seventeenth Street over Mercedes Main Canal 0.7 mi Good Mi 6 N Rd(10th St) over North Main Drain 1.0 mi Fair Tenth Street over Mercedes Main Canal 1.1 mi Fair Mile 4 N over Arroyo Colorado Trib 1.2 mi Good FM 491 over Arroyo Anacuitas 1.2 mi Good Fifth Street over Mercedes Main Canal 1.4 mi Fair Bus 83 over Mercedes Main Canal 1.6 mi Good Ibwc Levee over Ditch 21 1.8 mi Good US 83 Ebfr over Mercedes Main Canal 2.1 mi Good