US Bridges

CR 120 over San Antonio River

Good

Wilson County, Texas · 0.90 MI SW of US 181 · Structure no. 152470AA0114001

Built
2007
18 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
355 ft
3 main spans
Daily traffic
299
2020 count
Owner
County
County Highway Agency

About this bridge

CR 120 over San Antonio River is a prestressed concrete stringer/multi-beam or girder carrying CR 120 over San Antonio River in Wilson County, Texas. It was built in 2007, so it is 18 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 299 vehicles a day, projected to reach 75 by 2032. The structure is 355 ft (108.2 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCR 120
CrossesSan Antonio River
Location0.90 MI SW of US 181
RouteCounty Highway 120
CountyWilson County
StateTexas
Coordinates29.19593, -98.22001
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length355 ft (108.2 m)
Longest span125 ft (38.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic299 (2020)
Projected traffic75 by 2032
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$26,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 120 over San Antonio River built?

It was built in 2007, making it 18 years old in 2025.

What condition is CR 120 over San Antonio River 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 June 2023.

How much traffic does CR 120 over San Antonio River carry?

About 299 vehicles per day (2020 count).

How long is CR 120 over San Antonio River?

The structure is 355 ft (108.2 m) long with a longest span of 125 ft (38.1 m) and a deck 26 ft wide.

Who owns CR 120 over San Antonio River?

It is owned by the County Highway Agency.