US Bridges

Old Humble RD over Drainage Ditch

Good

Harris County, Texas · 0.55 MI SW of Bw 8 · Structure no. 121020B48674001

Built
1975
50 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
42 ft
2 main spans
Daily traffic
6,000
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Humble RD over Drainage Ditch is a concrete culvert carrying Old Humble RD over Drainage Ditch in Harris County, Texas. It was built in 1975, so it is 50 years old, older 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 6,000 vehicles a day, roughly 1% of them trucks, projected to reach 7,500 by 2030. The structure is 42 ft (12.8 m) long and 104 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld Humble RD
CrossesDrainage Ditch
Location0.55 MI SW of Bw 8
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.93444, -95.28982
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
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 typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span9 ft (2.7 m)
Deck width104 ft (31.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2010)
Projected traffic7,500 by 2030
Trucks1%
Lanes on structure4
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$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Humble RD over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Old Humble RD over Drainage Ditch 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 over Drainage Ditch carry?

About 6,000 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Old Humble RD over Drainage Ditch?

The structure is 42 ft (12.8 m) long with a longest span of 9 ft (2.7 m) and a deck 104 ft wide.

Who owns Old Humble RD over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.