US Bridges

SH 46 & Lp 351 over UPRR & FM 78

Fair

Guadalupe County, Texas · 0.3 MI N of IH 10 · Structure no. 150950021602203

Built
1966
59 years old, rebuilt 1997
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
380 ft
5 main spans
Daily traffic
24,933
2023 count
Owner
State
State Highway Agency

About this bridge

SH 46 & Lp 351 over UPRR & FM 78 is a steel continuous stringer/multi-beam or girder carrying SH 46 & Lp 351 over UPRR & FM 78 in Guadalupe County, Texas. It was built in 1966 and reconstructed in 1997, so it is 59 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 24,933 vehicles a day, roughly 11% of them trucks, projected to reach 37,980 by 2033. The structure is 380 ft (115.8 m) long and 90 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSH 46 & Lp 351
CrossesUPRR & FM 78
Location0.3 MI N of IH 10
RouteState Highway 46
CountyGuadalupe County
StateTexas
Coordinates29.58849, -97.9948
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadH 20
Structure length380 ft (115.8 m)
Longest span80 ft (24.4 m)
Deck width90 ft (27.4 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,933 (2023)
Projected traffic37,980 by 2033
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 46 & Lp 351 over UPRR & FM 78 built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1997.

What condition is SH 46 & Lp 351 over UPRR & FM 78 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 46 & Lp 351 over UPRR & FM 78 carry?

About 24,933 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SH 46 & Lp 351 over UPRR & FM 78?

The structure is 380 ft (115.8 m) long with a longest span of 80 ft (24.4 m) and a deck 90 ft wide.

Who owns SH 46 & Lp 351 over UPRR & FM 78?

It is owned by the State Highway Agency.