US Bridges

SH 173 over San Julian Creek

Fair

Bandera County, Texas · 2.21 MI S of SH 16 · Structure no. 150100042107021

Built
1956
69 years old, rebuilt 2009
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
150 ft
6 main spans
Daily traffic
1,900
2018 count
Owner
State
State Highway Agency

About this bridge

SH 173 over San Julian Creek is a concrete slab carrying SH 173 over San Julian Creek in Bandera County, Texas. It was built in 1956 and reconstructed in 2009, so it is 69 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 1,900 vehicles a day, roughly 11% of them trucks, projected to reach 2,560 by 2033. The structure is 150 ft (45.7 m) long and 46 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesSH 173
CrossesSan Julian Creek
Location2.21 MI S of SH 16
RouteState Highway 173
StateTexas
Coordinates29.69684, -99.05929
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length150 ft (45.7 m)
Longest span25 ft (7.6 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2018)
Projected traffic2,560 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 SH 173 over San Julian Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2009.

What condition is SH 173 over San Julian Creek 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 May 2024.

How much traffic does SH 173 over San Julian Creek carry?

About 1,900 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is SH 173 over San Julian Creek?

The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 46 ft wide.

Who owns SH 173 over San Julian Creek?

It is owned by the State Highway Agency.