US Bridges

CR 3310 over Ayish Bayou

Good

San Augustine County, Texas · 0.10 MI E of FM 705 · Structure no. 112030AA0187002

Built
2011
14 years old
Condition
Good
inspected May 2023
Type
Other
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
29
2023 count
Owner
County
County Highway Agency

About this bridge

CR 3310 over Ayish Bayou is a prestressed concrete other carrying CR 3310 over Ayish Bayou in San Augustine County, Texas. It was built in 2011, so it is 14 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 29 vehicles a day, projected to reach 80 by 2035. The structure is 90 ft (27.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCR 3310
CrossesAyish Bayou
Location0.10 MI E of FM 705
RouteCounty Highway 3310
CountySan Augustine County
StateTexas
Coordinates31.36734, -94.14928
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2023)
Projected traffic80 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 3310 over Ayish Bayou built?

It was built in 2011, making it 14 years old in 2025.

What condition is CR 3310 over Ayish Bayou 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 May 2023.

How much traffic does CR 3310 over Ayish Bayou carry?

About 29 vehicles per day (2023 count).

How long is CR 3310 over Ayish Bayou?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns CR 3310 over Ayish Bayou?

It is owned by the County Highway Agency.