US Bridges

SH 75 over Spring Branch

Good

Leon County, Texas · 3.0 MI S of FM 977 · Structure no. 171450016606057

Built
1947
78 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
865
2020 count
Owner
State
State Highway Agency

About this bridge

SH 75 over Spring Branch is a concrete continuous slab carrying SH 75 over Spring Branch in Leon County, Texas. It was built in 1947, so it is 78 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 865 vehicles a day, roughly 14% of them trucks, projected to reach 1,510 by 2033. The structure is 80 ft (24.4 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 75
CrossesSpring Branch
Location3.0 MI S of FM 977
RouteState Highway 75
CountyLeon County
StateTexas
Coordinates31.1176, -95.94351
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic865 (2020)
Projected traffic1,510 by 2033
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 75 over Spring Branch built?

It was built in 1947, making it 78 years old in 2025.

What condition is SH 75 over Spring 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 March 2023.

How much traffic does SH 75 over Spring Branch carry?

About 865 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is SH 75 over Spring Branch?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns SH 75 over Spring Branch?

It is owned by the State Highway Agency.