US Bridges

US 84 over Lampasas River

Fair

Hamilton County, Texas · 4.4 MI W of FM 2414 · Structure no. 090980005502028

Built
1938
87 years old, rebuilt 1965
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
253 ft
7 main spans
Daily traffic
1,988
2023 count
Owner
State
State Highway Agency

About this bridge

US 84 over Lampasas River is a concrete tee beam carrying US 84 over Lampasas River in Hamilton County, Texas. It was built in 1938 and reconstructed in 1965, so it is 87 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 5 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 1,988 vehicles a day, roughly 15% of them trucks, projected to reach 2,545 by 2042. The structure is 253 ft (77.1 m) long and 45 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesUS 84
CrossesLampasas River
Location4.4 MI W of FM 2414
RouteU.S. Route 84
CountyHamilton County
StateTexas
Coordinates31.48006, -98.27342
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length253 ft (77.1 m)
Longest span46 ft (14 m)
Deck width45 ft (13.8 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,988 (2023)
Projected traffic2,545 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 84 over Lampasas River built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1965.

What condition is US 84 over Lampasas River 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 November 2024.

How much traffic does US 84 over Lampasas River carry?

About 1,988 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US 84 over Lampasas River?

The structure is 253 ft (77.1 m) long with a longest span of 46 ft (14 m) and a deck 45 ft wide.

Who owns US 84 over Lampasas River?

It is owned by the State Highway Agency.