US Bridges

FM 99 over Sand Hollow Draw

Fair

Karnes County, Texas · 0.40 MI West of FM 2102 · Structure no. 161290034806016

Built
1941
84 years old, rebuilt 1967
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
41 ft
2 main spans
Daily traffic
1,150
2022 count
Owner
State
State Highway Agency

About this bridge

FM 99 over Sand Hollow Draw is a concrete tee beam carrying FM 99 over Sand Hollow Draw in Karnes County, Texas. It was built in 1941 and reconstructed in 1967, so it is 84 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 1,150 vehicles a day, roughly 49% of them trucks, projected to reach 1,610 by 2042. The structure is 41 ft (12.5 m) long and 39 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesFM 99
CrossesSand Hollow Draw
Location0.40 MI West of FM 2102
RouteState Highway 99
StateTexas
Coordinates28.79441, -98.0951
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span20 ft (6.1 m)
Deck width39 ft (12 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2022)
Projected traffic1,610 by 2042
Trucks49%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 99 over Sand Hollow Draw built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1967.

What condition is FM 99 over Sand Hollow Draw 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 April 2024.

How much traffic does FM 99 over Sand Hollow Draw carry?

About 1,150 vehicles per day (2022 count), of which roughly 49% are trucks.

How long is FM 99 over Sand Hollow Draw?

The structure is 41 ft (12.5 m) long with a longest span of 20 ft (6.1 m) and a deck 39 ft wide.

Who owns FM 99 over Sand Hollow Draw?

It is owned by the State Highway Agency.