US Bridges

Old Humble RD NB over Garners Bayou

Good

Harris County, Texas · 0.15 MI SW of Mesa DR · Structure no. 121020AA4135002

Built
1993
32 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
240 ft
5 main spans
Daily traffic
8,868
2016 count
Owner
County
County Highway Agency

About this bridge

Old Humble RD NB over Garners Bayou is a prestressed concrete box beam or girders - multiple carrying Old Humble RD NB over Garners Bayou in Harris County, Texas. It was built in 1993, so it is 32 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,868 vehicles a day, projected to reach 16,000 by 2030. The structure is 240 ft (73.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld Humble RD NB
CrossesGarners Bayou
Location0.15 MI SW of Mesa DR
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.95444, -95.2681
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length240 ft (73.2 m)
Longest span48 ft (14.6 m)
Deck width34 ft (10.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,868 (2016)
Projected traffic16,000 by 2030
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Humble RD NB over Garners Bayou built?

It was built in 1993, making it 32 years old in 2025.

What condition is Old Humble RD NB over Garners Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Old Humble RD NB over Garners Bayou carry?

About 8,868 vehicles per day (2016 count).

How long is Old Humble RD NB over Garners Bayou?

The structure is 240 ft (73.2 m) long with a longest span of 48 ft (14.6 m) and a deck 34 ft wide.

Who owns Old Humble RD NB over Garners Bayou?

It is owned by the County Highway Agency.