US Bridges

N Frio Rivr Circle over Detention Basin

Fair

Harris County, Texas · 0.10 MI E of E Frio River · Structure no. 121020A39240001

Built
2010
15 years old
Condition
Fair
inspected November 2023
Type
Culvert
Steel
Length
32 ft
1 main span
Daily traffic
250
2014 count
Owner
County
County Highway Agency

About this bridge

N Frio Rivr Circle over Detention Basin is a steel culvert carrying N Frio Rivr Circle over Detention Basin in Harris County, Texas. It was built in 2010, so it is 15 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 250 vehicles a day, projected to reach 500 by 2034. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesN Frio Rivr Circle
CrossesDetention Basin
Location0.10 MI E of E Frio River
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.92414, -95.69647
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span27 ft (8.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2014)
Projected traffic500 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 N Frio Rivr Circle over Detention Basin built?

It was built in 2010, making it 15 years old in 2025.

What condition is N Frio Rivr Circle over Detention Basin 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 November 2023.

How much traffic does N Frio Rivr Circle over Detention Basin carry?

About 250 vehicles per day (2014 count).

How long is N Frio Rivr Circle over Detention Basin?

The structure is 32 ft (9.8 m) long with a longest span of 27 ft (8.2 m).

Who owns N Frio Rivr Circle over Detention Basin?

It is owned by the County Highway Agency.