US Bridges

Dowlen Road over Keith Ditch

Good

Jefferson County, Texas · 1.3 MI S of Gladys Road · Structure no. 201240B00359001

Built
1978
47 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
46,230
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dowlen Road over Keith Ditch is a concrete culvert carrying Dowlen Road over Keith Ditch in Jefferson County, Texas. It was built in 1978, so it is 47 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 46,230 vehicles a day, projected to reach 46,230 by 2035. The structure is 31 ft (9.4 m) long.

Location

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CarriesDowlen Road
CrossesKeith Ditch
Location1.3 MI S of Gladys Road
RouteCity Street 25
CountyJefferson County
StateTexas
Coordinates30.08216, -94.17142
Functional classUrban Minor 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length31 ft (9.4 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,230 (2015)
Projected traffic46,230 by 2035
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Dowlen Road over Keith Ditch built?

It was built in 1978, making it 47 years old in 2025.

What condition is Dowlen Road over Keith 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 July 2023.

How much traffic does Dowlen Road over Keith Ditch carry?

About 46,230 vehicles per day (2015 count).

How long is Dowlen Road over Keith Ditch?

The structure is 31 ft (9.4 m) long with a longest span of 7 ft (2.1 m).

Who owns Dowlen Road over Keith Ditch?

It is owned by the City or Municipal Highway Agency.