US Bridges

FM 1623 over Hines Branch

Good

Blanco County, Texas · 1.0 MI W of US 281 · Structure no. 140160153401001

Built
1952
73 years old, rebuilt 1976
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
100 ft
4 main spans
Daily traffic
3,193
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1623 over Hines Branch is a concrete slab carrying FM 1623 over Hines Branch in Blanco County, Texas. It was built in 1952 and reconstructed in 1976, so it is 73 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 3,193 vehicles a day, roughly 19% of them trucks, projected to reach 2,960 by 2033. The structure is 100 ft (30.5 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM 1623
CrossesHines Branch
Location1.0 MI W of US 281
RouteState Highway 1623
CountyBlanco County
StateTexas
Coordinates30.10014, -98.43921
Functional classRural Major Collector

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating20.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length100 ft (30.5 m)
Longest span25 ft (7.6 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,193 (2020)
Projected traffic2,960 by 2033
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 FM 1623 over Hines Branch built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1976.

What condition is FM 1623 over Hines 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 April 2023.

How much traffic does FM 1623 over Hines Branch carry?

About 3,193 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is FM 1623 over Hines Branch?

The structure is 100 ft (30.5 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.

Who owns FM 1623 over Hines Branch?

It is owned by the State Highway Agency.