US Bridges

FM 81 over Draw Tributary 2

Fair

Karnes County, Texas · 3.6 Mi. S of US 72 · Structure no. 161290069101015

Built
2019
6 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
37 ft
5 main spans
Daily traffic
618
2022 count
Owner
State
State Highway Agency

About this bridge

FM 81 over Draw Tributary 2 is a concrete culvert carrying FM 81 over Draw Tributary 2 in Karnes County, Texas. It was built in 2019, so it is 6 years old, younger 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 618 vehicles a day, roughly 50% of them trucks, projected to reach 865 by 2042. The structure is 37 ft (11.2 m) long and 46 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesFM 81
CrossesDraw Tributary 2
Location3.6 Mi. S of US 72
RouteState Highway 81
StateTexas
Coordinates28.84325, -97.67868
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHL 93
Structure length37 ft (11.2 m)
Longest span6 ft (1.8 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic618 (2022)
Projected traffic865 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 81 over Draw Tributary 2 built?

It was built in 2019, making it 6 years old in 2025.

What condition is FM 81 over Draw Tributary 2 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 June 2024.

How much traffic does FM 81 over Draw Tributary 2 carry?

About 618 vehicles per day (2022 count), of which roughly 50% are trucks.

How long is FM 81 over Draw Tributary 2?

The structure is 37 ft (11.2 m) long with a longest span of 6 ft (1.8 m) and a deck 46 ft wide.

Who owns FM 81 over Draw Tributary 2?

It is owned by the State Highway Agency.