US Bridges

SH 6 SB over Grassy Creek

Fair

Grimes County, Texas · 2.9 MI S of SH 105 · Structure no. 170940005003017

Built
1928
97 years old, rebuilt 1952
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
368 ft
15 main spans
Daily traffic
12,922
2020 count
Owner
State
State Highway Agency

About this bridge

SH 6 SB over Grassy Creek is a concrete tee beam carrying SH 6 SB over Grassy Creek in Grimes County, Texas. It was built in 1928 and reconstructed in 1952, so it is 97 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 12,922 vehicles a day, roughly 19% of them trucks, projected to reach 15,986 by 2039. The structure is 368 ft (112.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 6 SB
CrossesGrassy Creek
Location2.9 MI S of SH 105
RouteState Highway 6
CountyGrimes County
StateTexas
Coordinates30.33834, -96.0485
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans15
Design loadH 15
Structure length368 ft (112.2 m)
Longest span25 ft (7.6 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,922 (2020)
Projected traffic15,986 by 2039
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 6 SB over Grassy Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1952.

What condition is SH 6 SB over Grassy 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 May 2023.

How much traffic does SH 6 SB over Grassy Creek carry?

About 12,922 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is SH 6 SB over Grassy Creek?

The structure is 368 ft (112.2 m) long with a longest span of 25 ft (7.6 m) and a deck 33 ft wide.

Who owns SH 6 SB over Grassy Creek?

It is owned by the State Highway Agency.