US Bridges

FM 3349 over Boggy Creek

Good

Williamson County, Texas · 2.00 MI S of US 79 · Structure no. 142460348601003

Built
1977
48 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
39 ft
5 main spans
Daily traffic
947
2021 count
Owner
State
State Highway Agency

About this bridge

FM 3349 over Boggy Creek is a concrete culvert carrying FM 3349 over Boggy Creek in Williamson County, Texas. It was built in 1977, so it is 48 years old, older 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 947 vehicles a day, roughly 6% of them trucks, projected to reach 1,326 by 2041. The structure is 39 ft (11.9 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 3349
CrossesBoggy Creek
Location2.00 MI S of US 79
RouteState Highway 3349
StateTexas
Coordinates30.52566, -97.48812
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than 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 loadHS 20
Structure length39 ft (11.9 m)
Longest span7 ft (2.1 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic947 (2021)
Projected traffic1,326 by 2041
Trucks6%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$35,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3349 over Boggy Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is FM 3349 over Boggy Creek 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 March 2023.

How much traffic does FM 3349 over Boggy Creek carry?

About 947 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FM 3349 over Boggy Creek?

The structure is 39 ft (11.9 m) long with a longest span of 7 ft (2.1 m) and a deck 37 ft wide.

Who owns FM 3349 over Boggy Creek?

It is owned by the State Highway Agency.