US Bridges

FM 732 over Drainage Ditch

Fair

Cameron County, Texas · 0.10 MI NE of US 77 · Structure no. 210310105702018

Built
1958
67 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
50 ft
2 main spans
Daily traffic
7,166
2020 count
Owner
State
State Highway Agency

About this bridge

FM 732 over Drainage Ditch is a concrete continuous slab carrying FM 732 over Drainage Ditch in Cameron County, Texas. It was built in 1958, so it is 67 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,166 vehicles a day, roughly 23% of them trucks, projected to reach 7,560 by 2030. The structure is 50 ft (15.2 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 732
CrossesDrainage Ditch
Location0.10 MI NE of US 77
RouteState Highway 732
CountyCameron County
StateTexas
Coordinates26.11099, -97.60744
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,166 (2020)
Projected traffic7,560 by 2030
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 732 over Drainage Ditch built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM 732 over Drainage Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does FM 732 over Drainage Ditch carry?

About 7,166 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is FM 732 over Drainage Ditch?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 42 ft wide.

Who owns FM 732 over Drainage Ditch?

It is owned by the State Highway Agency.