US Bridges

Riggs RD over Little White Oak Bayou

FairPosted for load

Harris County, Texas · 0.05 MI W of IH 45 FR · Structure no. 121020B54433310

Built
1964
61 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
101 ft
3 main spans
Daily traffic
2,100
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Riggs RD over Little White Oak Bayou is a concrete stringer/multi-beam or girder carrying Riggs RD over Little White Oak Bayou in Harris County, Texas. It was built in 1964, so it is 61 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. Its operating status is: posted for load restriction.

It carries about 2,100 vehicles a day, projected to reach 2,500 by 2031. The structure is 101 ft (30.8 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRiggs RD
CrossesLittle White Oak Bayou
Location0.05 MI W of IH 45 FR
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.82409, -95.38137
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length101 ft (30.8 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic2,100 (2011)
Projected traffic2,500 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Riggs RD over Little White Oak Bayou built?

It was built in 1964, making it 61 years old in 2025.

What condition is Riggs RD over Little White Oak 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 Riggs RD over Little White Oak Bayou carry?

About 2,100 vehicles per day (2011 count).

How long is Riggs RD over Little White Oak Bayou?

The structure is 101 ft (30.8 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Riggs RD over Little White Oak Bayou?

It is owned by the City or Municipal Highway Agency.