US Bridges

FM 99 over Sand Hollow Draw

Fair

Karnes County, Texas · 1.3 MI East of FM 2102 · Structure no. 161290034806014

Built
1941
84 years old, rebuilt 1950
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
5 main spans
Daily traffic
1,400
2020 count
Owner
State
State Highway Agency

About this bridge

FM 99 over Sand Hollow Draw is a concrete culvert carrying FM 99 over Sand Hollow Draw in Karnes County, Texas. It was built in 1941 and reconstructed in 1950, 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 1,400 vehicles a day, roughly 9% of them trucks, projected to reach 3,460 by 2033. The structure is 24 ft (7.3 m) long and 51 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFM 99
CrossesSand Hollow Draw
Location1.3 MI East of FM 2102
RouteState Highway 99
CountyKarnes County
StateTexas
Coordinates28.8081, -98.07245
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 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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span4 ft (1.2 m)
Deck width51 ft (15.5 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2020)
Projected traffic3,460 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 1950.

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 1,400 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is FM 99 over Sand Hollow Draw?

The structure is 24 ft (7.3 m) long with a longest span of 4 ft (1.2 m) and a deck 51 ft wide.

Who owns FM 99 over Sand Hollow Draw?

It is owned by the State Highway Agency.