US Bridges

FM 734 EB over Walnut Crk Trib/ Cmta RR

Fair

Travis County, Texas · 0.2 MI W of Lp 1 · Structure no. 142270341701009

Built
1990
35 years old, rebuilt 2006
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
456 ft
6 main spans
Daily traffic
19,134
2020 count
Owner
State
State Highway Agency

About this bridge

FM 734 EB over Walnut Crk Trib/ Cmta RR is a prestressed concrete stringer/multi-beam or girder carrying FM 734 EB over Walnut Crk Trib/ Cmta RR in Travis County, Texas. It was built in 1990 and reconstructed in 2006, so it is 35 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 19,134 vehicles a day, roughly 4% of them trucks, projected to reach 30,091 by 2039. The structure is 456 ft (139 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 734 EB
CrossesWalnut Crk Trib/ Cmta RR
Location0.2 MI W of Lp 1
RouteState Highway 734
StateTexas
Coordinates30.42027, -97.70432
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length456 ft (139 m)
Longest span97 ft (29.6 m)
Deck width87 ft (26.5 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,134 (2020)
Projected traffic30,091 by 2039
Trucks4%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FM 734 EB over Walnut Crk Trib/ Cmta RR built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2006.

What condition is FM 734 EB over Walnut Crk Trib/ Cmta RR 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 734 EB over Walnut Crk Trib/ Cmta RR carry?

About 19,134 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is FM 734 EB over Walnut Crk Trib/ Cmta RR?

The structure is 456 ft (139 m) long with a longest span of 97 ft (29.6 m) and a deck 87 ft wide.

Who owns FM 734 EB over Walnut Crk Trib/ Cmta RR?

It is owned by the State Highway Agency.