US Bridges

FM 732 over Drainage Ditch

Good

Cameron County, Texas · 2.00 MI NE of US 281 · Structure no. 210310105702006

Built
1951
74 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
5,687
2023 count
Owner
State
State Highway Agency

About this bridge

FM 732 over Drainage Ditch is a concrete slab carrying FM 732 over Drainage Ditch in Cameron County, Texas. It was built in 1951, so it is 74 years old, older 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 5,687 vehicles a day, roughly 17% of them trucks, projected to reach 4,800 by 2033. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM 732
CrossesDrainage Ditch
Location2.00 MI NE of US 281
RouteState Highway 732
CountyCameron County
StateTexas
Coordinates26.06784, -97.64546
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,687 (2023)
Projected traffic4,800 by 2033
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 732 over Drainage Ditch built?

It was built in 1951, making it 74 years old in 2025.

What condition is FM 732 over Drainage Ditch 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 March 2023.

How much traffic does FM 732 over Drainage Ditch carry?

About 5,687 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is FM 732 over Drainage Ditch?

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

Who owns FM 732 over Drainage Ditch?

It is owned by the State Highway Agency.