US Bridges

FM 1979 over Little Cottonwood Creek

Fair

Guadalupe County, Texas · 3.3 MI E SH 123 · Structure no. 150950189803003

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
773
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1979 over Little Cottonwood Creek is a concrete culvert carrying FM 1979 over Little Cottonwood Creek in Guadalupe County, Texas. It was built in 1967, so it is 58 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 773 vehicles a day, roughly 10% of them trucks, projected to reach 1,000 by 2033. The structure is 36 ft (11 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1979
CrossesLittle Cottonwood Creek
Location3.3 MI E SH 123
RouteState Highway 1979
StateTexas
Coordinates29.78374, -97.89863
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 adequacy6: Equal to 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 spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic773 (2020)
Projected traffic1,000 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1979 over Little Cottonwood Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM 1979 over Little Cottonwood Creek 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 August 2024.

How much traffic does FM 1979 over Little Cottonwood Creek carry?

About 773 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FM 1979 over Little Cottonwood Creek?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns FM 1979 over Little Cottonwood Creek?

It is owned by the State Highway Agency.