US Bridges

SH 6 over Walnut Creek Relief No 3

Fair

Robertson County, Texas · 0.1 MI S of FM 2159 · Structure no. 171980004906061

Built
1951
74 years old, rebuilt 2006
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
44 ft
5 main spans
Daily traffic
10,102
2023 count
Owner
State
State Highway Agency

About this bridge

SH 6 over Walnut Creek Relief No 3 is a concrete culvert carrying SH 6 over Walnut Creek Relief No 3 in Robertson County, Texas. It was built in 1951 and reconstructed in 2006, so it is 74 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 10,102 vehicles a day, roughly 38% of them trucks, projected to reach 17,375 by 2042. The structure is 44 ft (13.4 m) long and 198 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesSH 6
CrossesWalnut Creek Relief No 3
Location0.1 MI S of FM 2159
RouteState Highway 6
CountyRobertson County
StateTexas
Coordinates31.01908, -96.70657
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length44 ft (13.4 m)
Longest span8 ft (2.4 m)
Deck width198 ft (60.4 m)
Roadway width107 ft (32.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,102 (2023)
Projected traffic17,375 by 2042
Trucks38%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

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 SH 6 over Walnut Creek Relief No 3 built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2006.

What condition is SH 6 over Walnut Creek Relief No 3 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 2024.

How much traffic does SH 6 over Walnut Creek Relief No 3 carry?

About 10,102 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is SH 6 over Walnut Creek Relief No 3?

The structure is 44 ft (13.4 m) long with a longest span of 8 ft (2.4 m) and a deck 198 ft wide.

Who owns SH 6 over Walnut Creek Relief No 3?

It is owned by the State Highway Agency.