US Bridges

Kirby ST over Keen Branch

Good

Dallas County, Texas · 0.07 MI S of Walnut ST · Structure no. 180570B13334001

Built
1970
55 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
45 ft
4 main spans
Daily traffic
1,626
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kirby ST over Keen Branch is a concrete culvert carrying Kirby ST over Keen Branch in Dallas County, Texas. It was built in 1970, so it is 55 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 1,626 vehicles a day, projected to reach 3,000 by 2031. The structure is 45 ft (13.7 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKirby ST
CrossesKeen Branch
Location0.07 MI S of Walnut ST
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.91552, -96.67686
Functional classUrban Local

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length45 ft (13.7 m)
Longest span10 ft (3 m)
Deck width46 ft (13.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,626 (2022)
Projected traffic3,000 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kirby ST over Keen Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Kirby ST over Keen Branch 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 February 2023.

How much traffic does Kirby ST over Keen Branch carry?

About 1,626 vehicles per day (2022 count).

How long is Kirby ST over Keen Branch?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.

Who owns Kirby ST over Keen Branch?

It is owned by the City or Municipal Highway Agency.