US Bridges

FM 3231 over Martin Lake

Fair

Rusk County, Texas · 2.50 MI N of FM 1251 · Structure no. 102010042405025

Built
1975
50 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
80 ft
2 main spans
Daily traffic
112
2021 count
Owner
State
State Highway Agency

About this bridge

FM 3231 over Martin Lake is a concrete stringer/multi-beam or girder carrying FM 3231 over Martin Lake in Rusk County, Texas. It was built in 1975, so it is 50 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 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 112 vehicles a day, roughly 11% of them trucks, projected to reach 157 by 2041. The structure is 80 ft (24.4 m) long and 28 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesFM 3231
CrossesMartin Lake
Location2.50 MI N of FM 1251
RouteState Highway 3231
CountyRusk County
StateTexas
Coordinates32.22136, -94.57152
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2021)
Projected traffic157 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3231 over Martin Lake built?

It was built in 1975, making it 50 years old in 2025.

What condition is FM 3231 over Martin 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 June 2023.

How much traffic does FM 3231 over Martin Lake carry?

About 112 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is FM 3231 over Martin Lake?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns FM 3231 over Martin Lake?

It is owned by the State Highway Agency.