US Bridges

Duke Bridge RD over San Antonio River

Fair

Goliad County, Texas · 2.80 MI N of SH 239 · Structure no. 160890AA0189001

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
5 main spans
Daily traffic
235
2020 count
Owner
County
County Highway Agency

About this bridge

Duke Bridge RD over San Antonio River is a prestressed concrete stringer/multi-beam or girder carrying Duke Bridge RD over San Antonio River in Goliad County, Texas. It was built in 1994, so it is 31 years old, younger 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 235 vehicles a day, projected to reach 75 by 2035. The structure is 420 ft (128 m) long and 30 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesDuke Bridge RD
CrossesSan Antonio River
Location2.80 MI N of SH 239
RouteCounty Highway 0
StateTexas
Coordinates28.61301, -97.21396
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length420 ft (128 m)
Longest span100 ft (30.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2020)
Projected traffic75 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Duke Bridge RD over San Antonio River built?

It was built in 1994, making it 31 years old in 2025.

What condition is Duke Bridge RD over San Antonio River 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 September 2024.

How much traffic does Duke Bridge RD over San Antonio River carry?

About 235 vehicles per day (2020 count).

How long is Duke Bridge RD over San Antonio River?

The structure is 420 ft (128 m) long with a longest span of 100 ft (30.5 m) and a deck 30 ft wide.

Who owns Duke Bridge RD over San Antonio River?

It is owned by the County Highway Agency.