US Bridges

Nelson RD over S Benito Drainage Ditch

Good

Cameron County, Texas · 0.25 MI N of FM 510 · Structure no. 210310AA0830002

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
348
2019 count
Owner
County
County Highway Agency

About this bridge

Nelson RD over S Benito Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying Nelson RD over S Benito Drainage Ditch in Cameron County, Texas. It was built in 1998, so it is 27 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 348 vehicles a day, roughly 2% of them trucks, projected to reach 430 by 2029. The structure is 70 ft (21.3 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNelson RD
CrossesS Benito Drainage Ditch
Location0.25 MI N of FM 510
RouteCounty Highway 0
StateTexas
Coordinates26.14378, -97.57168
Functional classRural Local

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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum 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 length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2019)
Projected traffic430 by 2029
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Nelson RD over S Benito Drainage Ditch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nelson RD over S Benito 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 2024.

How much traffic does Nelson RD over S Benito Drainage Ditch carry?

About 348 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Nelson RD over S Benito Drainage Ditch?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns Nelson RD over S Benito Drainage Ditch?

It is owned by the County Highway Agency.