US Bridges

US 183 over Sulphur Creek

Fair

Lampasas County, Texas · 0.15 MI N of US 190 · Structure no. 231410027301012

Built
1949
76 years old, rebuilt 1991
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
4 main spans
Daily traffic
12,133
2020 count
Owner
State
State Highway Agency

About this bridge

US 183 over Sulphur Creek is a steel continuous stringer/multi-beam or girder carrying US 183 over Sulphur Creek in Lampasas County, Texas. It was built in 1949 and reconstructed in 1991, so it is 76 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 12,133 vehicles a day, roughly 8% of them trucks, projected to reach 20,000 by 2033. The structure is 280 ft (85.3 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 183
CrossesSulphur Creek
Location0.15 MI N of US 190
RouteU.S. Route 183
CountyLampasas County
StateTexas
Coordinates31.05788, -98.17959
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span90 ft (27.4 m)
Deck width86 ft (26.2 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,133 (2020)
Projected traffic20,000 by 2033
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 183 over Sulphur Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1991.

What condition is US 183 over Sulphur Creek 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 October 2023.

How much traffic does US 183 over Sulphur Creek carry?

About 12,133 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is US 183 over Sulphur Creek?

The structure is 280 ft (85.3 m) long with a longest span of 90 ft (27.4 m) and a deck 86 ft wide.

Who owns US 183 over Sulphur Creek?

It is owned by the State Highway Agency.