US Bridges

SH 6 SB over Walnut Creek Relief No 1

Good

Robertson County, Texas · 0.4 MI S of FM 2159 · Structure no. 171980004906154

Built
2008
17 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
6 main spans
Daily traffic
5,051
2023 count
Owner
State
State Highway Agency

About this bridge

SH 6 SB over Walnut Creek Relief No 1 is a prestressed concrete stringer/multi-beam or girder carrying SH 6 SB over Walnut Creek Relief No 1 in Robertson County, Texas. It was built in 2008, so it is 17 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,051 vehicles a day, roughly 38% of them trucks, projected to reach 8,688 by 2042. The structure is 300 ft (91.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 6 SB
CrossesWalnut Creek Relief No 1
Location0.4 MI S of FM 2159
RouteState Highway 6
StateTexas
Coordinates31.01476, -96.7049
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
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 loadHL 93
Structure length300 ft (91.4 m)
Longest span50 ft (15.2 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,051 (2023)
Projected traffic8,688 by 2042
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 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 SH 6 SB over Walnut Creek Relief No 1 built?

It was built in 2008, making it 17 years old in 2025.

What condition is SH 6 SB over Walnut Creek Relief No 1 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does SH 6 SB over Walnut Creek Relief No 1 carry?

About 5,051 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is SH 6 SB over Walnut Creek Relief No 1?

The structure is 300 ft (91.4 m) long with a longest span of 50 ft (15.2 m) and a deck 40 ft wide.

Who owns SH 6 SB over Walnut Creek Relief No 1?

It is owned by the State Highway Agency.