US Bridges

RR 1 over Williams Creek

Fair

Blanco County, Texas · 0.3 MI W of US 290 · Structure no. 140160011316009

Built
1924
101 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
99 ft
3 main spans
Daily traffic
337
2020 count
Owner
State
State Highway Agency

About this bridge

RR 1 over Williams Creek is a concrete tee beam carrying RR 1 over Williams Creek in Blanco County, Texas. It was built in 1924, so it is 101 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 337 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2033. The structure is 99 ft (30.2 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRR 1
CrossesWilliams Creek
Location0.3 MI W of US 290
RouteState Highway 1
CountyBlanco County
StateTexas
Coordinates30.24211, -98.58029
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length99 ft (30.2 m)
Longest span33 ft (10.1 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2020)
Projected traffic150 by 2033
Trucks5%
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 RR 1 over Williams Creek built?

It was built in 1924, making it 101 years old in 2025.

What condition is RR 1 over Williams 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 April 2023.

How much traffic does RR 1 over Williams Creek carry?

About 337 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is RR 1 over Williams Creek?

The structure is 99 ft (30.2 m) long with a longest span of 33 ft (10.1 m) and a deck 23 ft wide.

Who owns RR 1 over Williams Creek?

It is owned by the State Highway Agency.