US Bridges

FM 1123 over Lampasas River

FairPosted for load

Bell County, Texas · 2.20 MI S of FM 436 · Structure no. 090140130801008

Built
1955
70 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
241 ft
1 main span
Daily traffic
1,377
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1123 over Lampasas River is a steel stringer/multi-beam or girder carrying FM 1123 over Lampasas River in Bell County, Texas. It was built in 1955, so it is 70 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. Its operating status is: posted for load restriction.

It carries about 1,377 vehicles a day, roughly 14% of them trucks, projected to reach 1,580 by 2035. The structure is 241 ft (73.5 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM 1123
CrossesLampasas River
Location2.20 MI S of FM 436
RouteState Highway 1123
CountyBell County
StateTexas
Coordinates30.9899, -97.44511
Functional classRural Major Collector

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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 15
Structure length241 ft (73.5 m)
Longest span80 ft (24.4 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,377 (2020)
Projected traffic1,580 by 2035
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1123 over Lampasas River built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM 1123 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 February 2023.

How much traffic does FM 1123 over Lampasas River carry?

About 1,377 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is FM 1123 over Lampasas River?

The structure is 241 ft (73.5 m) long with a longest span of 80 ft (24.4 m) and a deck 26 ft wide.

Who owns FM 1123 over Lampasas River?

It is owned by the State Highway Agency.