US Bridges

FM 799 over Gamble Gully

Fair

Live Oak County, Texas · 2.1 MI SE of US 59 · Structure no. 161490105801006

Built
1958
67 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
100 ft
4 main spans
Daily traffic
294
2022 count
Owner
State
State Highway Agency

About this bridge

FM 799 over Gamble Gully is a concrete slab carrying FM 799 over Gamble Gully in Live Oak County, Texas. It was built in 1958, so it is 67 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 294 vehicles a day, roughly 50% of them trucks, projected to reach 412 by 2042. The structure is 100 ft (30.5 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 799
CrossesGamble Gully
Location2.1 MI SE of US 59
RouteState Highway 799
CountyLive Oak County
StateTexas
Coordinates28.3106, -98.05092
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length100 ft (30.5 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic294 (2022)
Projected traffic412 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$168,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 799 over Gamble Gully built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM 799 over Gamble Gully 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 February 2024.

How much traffic does FM 799 over Gamble Gully carry?

About 294 vehicles per day (2022 count), of which roughly 50% are trucks.

How long is FM 799 over Gamble Gully?

The structure is 100 ft (30.5 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns FM 799 over Gamble Gully?

It is owned by the State Highway Agency.