US Bridges

Bus 123 over Walnut Branch

Good

Guadalupe County, Texas · 0.50 MI S of US 90A · Structure no. 150950036612011

Built
1930
95 years old, rebuilt 1971
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete
Length
85 ft
3 main spans
Daily traffic
7,850
2013 count
Owner
State
State Highway Agency

About this bridge

Bus 123 over Walnut Branch is a concrete tee beam carrying Bus 123 over Walnut Branch in Guadalupe County, Texas. It was built in 1930 and reconstructed in 1971, so it is 95 years old, older 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 7,850 vehicles a day, roughly 19% of them trucks, projected to reach 10,990 by 2033. The structure is 85 ft (25.9 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBus 123
CrossesWalnut Branch
Location0.50 MI S of US 90A
RouteState Highway 123
StateTexas
Coordinates29.5621, -97.96547
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length85 ft (25.9 m)
Longest span29 ft (8.8 m)
Deck width58 ft (17.8 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,850 (2013)
Projected traffic10,990 by 2033
Trucks19%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Bus 123 over Walnut Branch built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1971.

What condition is Bus 123 over Walnut Branch 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 August 2024.

How much traffic does Bus 123 over Walnut Branch carry?

About 7,850 vehicles per day (2013 count), of which roughly 19% are trucks.

How long is Bus 123 over Walnut Branch?

The structure is 85 ft (25.9 m) long with a longest span of 29 ft (8.8 m) and a deck 58 ft wide.

Who owns Bus 123 over Walnut Branch?

It is owned by the State Highway Agency.