US Bridges

CR 347 over Willis Creek

Fair

Williamson County, Texas · 1.2 MI S of FM 971 · Structure no. 142460AA0313004

Built
1987
38 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
118 ft
1 main span
Daily traffic
208
2020 count
Owner
County
County Highway Agency

About this bridge

CR 347 over Willis Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 347 over Willis Creek in Williamson County, Texas. It was built in 1987, so it is 38 years old, younger 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 208 vehicles a day, roughly 2% of them trucks, projected to reach 295 by 2027. The structure is 118 ft (36 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCR 347
CrossesWillis Creek
Location1.2 MI S of FM 971
RouteCounty Highway 347
CountyWilliamson County
StateTexas
Coordinates30.70214, -97.43419
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length118 ft (36 m)
Longest span117 ft (35.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2020)
Projected traffic295 by 2027
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 347 over Willis Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is CR 347 over Willis 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 November 2023.

How much traffic does CR 347 over Willis Creek carry?

About 208 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is CR 347 over Willis Creek?

The structure is 118 ft (36 m) long with a longest span of 117 ft (35.7 m) and a deck 30 ft wide.

Who owns CR 347 over Willis Creek?

It is owned by the County Highway Agency.