US Bridges

Shell Plant RD over Buffalo Bayou

Fair

Waller County, Texas · 0.45 MI N of US 90 · Structure no. 122370AA0195002

Built
2011
14 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
57 ft
5 main spans
Daily traffic
70
2009 count
Owner
County
County Highway Agency

About this bridge

Shell Plant RD over Buffalo Bayou is a steel culvert carrying Shell Plant RD over Buffalo Bayou in Waller County, Texas. It was built in 2011, so it is 14 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 70 vehicles a day, projected to reach 170 by 2029. The structure is 57 ft (17.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesShell Plant RD
CrossesBuffalo Bayou
Location0.45 MI N of US 90
RouteCounty Highway 0
CountyWaller County
StateTexas
Coordinates29.79325, -95.90643
Functional classRural Local

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans5
Design loadUnknown
Structure length57 ft (17.4 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2009)
Projected traffic170 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Shell Plant RD over Buffalo Bayou built?

It was built in 2011, making it 14 years old in 2025.

What condition is Shell Plant RD over Buffalo Bayou 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 September 2023.

How much traffic does Shell Plant RD over Buffalo Bayou carry?

About 70 vehicles per day (2009 count).

How long is Shell Plant RD over Buffalo Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 9 ft (2.7 m).

Who owns Shell Plant RD over Buffalo Bayou?

It is owned by the County Highway Agency.