US Bridges

FM 733 over US 83

Good

Cameron County, Texas · 2.15 MI E of FM 2556 · Structure no. 210310003919191

Built
1970
55 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
436 ft
4 main spans
Daily traffic
1,664
2024 count
Owner
State
State Highway Agency

About this bridge

FM 733 over US 83 is a prestressed concrete stringer/multi-beam or girder carrying FM 733 over US 83 in Cameron County, Texas. It was built in 1970, so it is 55 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 1,664 vehicles a day, roughly 2% of them trucks, projected to reach 2,600 by 2033. The structure is 436 ft (132.9 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 733
CrossesUS 83
Location2.15 MI E of FM 2556
RouteState Highway 733
StateTexas
Coordinates26.16761, -97.81356
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: 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 spans4 (+2 approach)
Design loadHS 20
Structure length436 ft (132.9 m)
Longest span89 ft (27.1 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,664 (2024)
Projected traffic2,600 by 2033
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 733 over US 83 built?

It was built in 1970, making it 55 years old in 2025.

What condition is FM 733 over US 83 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 733 over US 83 carry?

About 1,664 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is FM 733 over US 83?

The structure is 436 ft (132.9 m) long with a longest span of 89 ft (27.1 m) and a deck 44 ft wide.

Who owns FM 733 over US 83?

It is owned by the State Highway Agency.