US Bridges

SH 123 over Guadalupe River

Fair

Guadalupe County, Texas · 1.30 MI S of FM 466 · Structure no. 150950036603059

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
640 ft
8 main spans
Daily traffic
12,775
2023 count
Owner
State
State Highway Agency

About this bridge

SH 123 over Guadalupe River is a prestressed concrete stringer/multi-beam or girder carrying SH 123 over Guadalupe River in Guadalupe County, Texas. It was built in 1972, so it is 53 years old, older 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 12,775 vehicles a day, roughly 13% of them trucks, projected to reach 7,820 by 2033. The structure is 640 ft (195.1 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 123
CrossesGuadalupe River
Location1.30 MI S of FM 466
RouteState Highway 123
StateTexas
Coordinates29.54723, -97.95165
Functional classUrban Other Principal Arterial

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to 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 spans8
Design loadHS 20
Structure length640 ft (195.1 m)
Longest span80 ft (24.4 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,775 (2023)
Projected traffic7,820 by 2033
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 123 over Guadalupe River built?

It was built in 1972, making it 53 years old in 2025.

What condition is SH 123 over Guadalupe 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 August 2024.

How much traffic does SH 123 over Guadalupe River carry?

About 12,775 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SH 123 over Guadalupe River?

The structure is 640 ft (195.1 m) long with a longest span of 80 ft (24.4 m) and a deck 46 ft wide.

Who owns SH 123 over Guadalupe River?

It is owned by the State Highway Agency.