US Bridges

FM 510 over Drainage Ditch

Good

Cameron County, Texas · 4.20 MI W of FM 803 · Structure no. 210310105703022

Built
1995
30 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
80 ft
2 main spans
Daily traffic
7,197
2024 count
Owner
State
State Highway Agency

About this bridge

FM 510 over Drainage Ditch is a concrete stringer/multi-beam or girder carrying FM 510 over Drainage Ditch in Cameron County, Texas. It was built in 1995, so it is 30 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 7,197 vehicles a day, roughly 25% of them trucks, projected to reach 8,340 by 2033. The structure is 80 ft (24.4 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM 510
CrossesDrainage Ditch
Location4.20 MI W of FM 803
RouteState Highway 510
StateTexas
Coordinates26.14174, -97.58508
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.
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 evaluation7: Better than 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 rating75 US tons
Inventory rating45 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,197 (2024)
Projected traffic8,340 by 2033
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 510 over Drainage Ditch built?

It was built in 1995, making it 30 years old in 2025.

What condition is FM 510 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 510 over Drainage Ditch carry?

About 7,197 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is FM 510 over Drainage Ditch?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 44 ft wide.

Who owns FM 510 over Drainage Ditch?

It is owned by the State Highway Agency.