US Bridges

FM 1373 over Alligator Creek

Good

Robertson County, Texas · 3.2 MI SW of SH 6 · Structure no. 171980054006042

Built
1987
38 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
53 ft
5 main spans
Daily traffic
136
2023 count
Owner
State
State Highway Agency

About this bridge

FM 1373 over Alligator Creek is a concrete culvert carrying FM 1373 over Alligator Creek in Robertson County, Texas. It was built in 1987, so it is 38 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 136 vehicles a day, roughly 10% of them trucks, projected to reach 180 by 2033. The structure is 53 ft (16.1 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM 1373
CrossesAlligator Creek
Location3.2 MI SW of SH 6
RouteState Highway 1373
StateTexas
Coordinates31.11485, -96.76899
Functional classRural Minor 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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
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 length53 ft (16.1 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic136 (2023)
Projected traffic180 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1373 over Alligator Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM 1373 over Alligator 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 November 2024.

How much traffic does FM 1373 over Alligator Creek carry?

About 136 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is FM 1373 over Alligator Creek?

The structure is 53 ft (16.1 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns FM 1373 over Alligator Creek?

It is owned by the State Highway Agency.