US Bridges

Mockingbird Lane over Drainage Channel

Fair

Dallas County, Texas · 0.4 MI W of SH 183 · Structure no. 1805709M6760005

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
33,041
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mockingbird Lane over Drainage Channel is a concrete culvert carrying Mockingbird Lane over Drainage Channel in Dallas County, Texas. It was built in 1960, so it is 65 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 33,041 vehicles a day, roughly 3% of them trucks, projected to reach 46,257 by 2037. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMockingbird Lane
CrossesDrainage Channel
Location0.4 MI W of SH 183
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.81372, -96.87362
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length22 ft (6.7 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 traffic33,041 (2015)
Projected traffic46,257 by 2037
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$52,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mockingbird Lane over Drainage Channel built?

It was built in 1960, making it 65 years old in 2025.

What condition is Mockingbird Lane over Drainage Channel 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 April 2023.

How much traffic does Mockingbird Lane over Drainage Channel carry?

About 33,041 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Mockingbird Lane over Drainage Channel?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns Mockingbird Lane over Drainage Channel?

It is owned by the City or Municipal Highway Agency.