US Bridges

FM 1227 over Grassy Creek

Fair

Grimes County, Texas · 1.6 MI W of SH 6 · Structure no. 170940064306045

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
155 ft
1 main span
Daily traffic
428
2021 count
Owner
State
State Highway Agency

About this bridge

FM 1227 over Grassy Creek is a prestressed concrete box beam or girders - multiple carrying FM 1227 over Grassy Creek in Grimes County, Texas. It was built in 1986, so it is 39 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 428 vehicles a day, roughly 8% of them trucks, projected to reach 599 by 2041. The structure is 155 ft (47.2 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM 1227
CrossesGrassy Creek
Location1.6 MI W of SH 6
RouteState Highway 1227
StateTexas
Coordinates30.29922, -96.07243
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum 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 spans1 (+4 approach)
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span55 ft (16.8 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic428 (2021)
Projected traffic599 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 1227 over Grassy Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is FM 1227 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 FM 1227 over Grassy Creek carry?

About 428 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is FM 1227 over Grassy Creek?

The structure is 155 ft (47.2 m) long with a longest span of 55 ft (16.8 m) and a deck 36 ft wide.

Who owns FM 1227 over Grassy Creek?

It is owned by the State Highway Agency.