US Bridges

FM 3481 over Stillhouse Hollow Lake

Fair

Bell County, Texas · 3.45 MI S of FM 2410 · Structure no. 090140340901001

Built
1965
60 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,310 ft
33 main spans
Daily traffic
3,880
2018 count
Owner
State
State Highway Agency

About this bridge

FM 3481 over Stillhouse Hollow Lake is a prestressed concrete stringer/multi-beam or girder carrying FM 3481 over Stillhouse Hollow Lake in Bell County, Texas. It was built in 1965, so it is 60 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 3,880 vehicles a day, roughly 3% of them trucks, projected to reach 4,930 by 2033. The structure is 2,310 ft (704.1 m) long and 29 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesFM 3481
CrossesStillhouse Hollow Lake
Location3.45 MI S of FM 2410
RouteState Highway 3481
StateTexas
Coordinates31.00933, -97.64852
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
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 inspectionMarch 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans33
Design loadHS 20
Structure length2,310 ft (704.1 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,880 (2018)
Projected traffic4,930 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

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$12.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3481 over Stillhouse Hollow Lake built?

It was built in 1965, making it 60 years old in 2025.

What condition is FM 3481 over Stillhouse Hollow Lake 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 March 2023.

How much traffic does FM 3481 over Stillhouse Hollow Lake carry?

About 3,880 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is FM 3481 over Stillhouse Hollow Lake?

The structure is 2,310 ft (704.1 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns FM 3481 over Stillhouse Hollow Lake?

It is owned by the State Highway Agency.