US Bridges

FM 1761 over Old West Main Drain

Good

Willacy County, Texas · 1.4 MI N of SH 186 · Structure no. 212450158701003

Built
2003
22 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
658
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1761 over Old West Main Drain is a prestressed concrete stringer/multi-beam or girder carrying FM 1761 over Old West Main Drain in Willacy County, Texas. It was built in 2003, so it is 22 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 658 vehicles a day, roughly 26% of them trucks, projected to reach 1,210 by 2031. The structure is 60 ft (18.3 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM 1761
CrossesOld West Main Drain
Location1.4 MI N of SH 186
RouteState Highway 1761
StateTexas
Coordinates26.49971, -97.84625
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic658 (2020)
Projected traffic1,210 by 2031
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1761 over Old West Main Drain built?

It was built in 2003, making it 22 years old in 2025.

What condition is FM 1761 over Old West Main Drain in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FM 1761 over Old West Main Drain carry?

About 658 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is FM 1761 over Old West Main Drain?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 46 ft wide.

Who owns FM 1761 over Old West Main Drain?

It is owned by the State Highway Agency.