US Bridges

SH46 over Tributary to Post Oak CR

Fair

Kendall County, Texas · 4.3 Mi. E. of BU87 · Structure no. 151310021506234

Built
1984
41 years old, rebuilt 2024
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
46 ft
6 main spans
Daily traffic
15,335
2020 count
Owner
State
State Highway Agency

About this bridge

SH46 over Tributary to Post Oak CR is a steel culvert carrying SH46 over Tributary to Post Oak CR in Kendall County, Texas. It was built in 1984 and reconstructed in 2024, so it is 41 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 15,335 vehicles a day, roughly 6% of them trucks, projected to reach 1 by 1900. The structure is 46 ft (14 m) long and 82 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

Location

Open in Google Maps
CarriesSH46
CrossesTributary to Post Oak CR
Location4.3 Mi. E. of BU87
RouteState Highway 46
CountyKendall County
StateTexas
Coordinates29.80044, -98.66292
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans6
Design loadUnknown
Structure length46 ft (14 m)
Longest span6 ft (1.8 m)
Deck width82 ft (25 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,335 (2020)
Projected traffic1 by 1900
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.2 mi (105 km)
TollOn a free road
National Highway SystemYes

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 SH46 over Tributary to Post Oak CR built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2024.

What condition is SH46 over Tributary to Post Oak CR 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 SH46 over Tributary to Post Oak CR carry?

About 15,335 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SH46 over Tributary to Post Oak CR?

The structure is 46 ft (14 m) long with a longest span of 6 ft (1.8 m) and a deck 82 ft wide.

Who owns SH46 over Tributary to Post Oak CR?

It is owned by the State Highway Agency.