US Bridges

Mockingbird Lane over White Rock Lake

Fair

Dallas County, Texas · 0.3 MI W of Buckner Blvd · Structure no. 1805709M6760004

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
850 ft
17 main spans
Daily traffic
21,682
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mockingbird Lane over White Rock Lake is a prestressed concrete stringer/multi-beam or girder carrying Mockingbird Lane over White Rock Lake in Dallas County, Texas. It was built in 1965, so it is 60 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 21,682 vehicles a day, roughly 10% of them trucks, projected to reach 28,283 by 2041. The structure is 850 ft (259.1 m) long and 83 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMockingbird Lane
CrossesWhite Rock Lake
Location0.3 MI W of Buckner Blvd
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.85272, -96.72258
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans17
Design loadUnknown
Structure length850 ft (259.1 m)
Longest span50 ft (15.2 m)
Deck width83 ft (25.3 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,682 (2014)
Projected traffic28,283 by 2041
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$140,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mockingbird Lane over White Rock Lake built?

It was built in 1965, making it 60 years old in 2025.

What condition is Mockingbird Lane over White Rock Lake 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 November 2024.

How much traffic does Mockingbird Lane over White Rock Lake carry?

About 21,682 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Mockingbird Lane over White Rock Lake?

The structure is 850 ft (259.1 m) long with a longest span of 50 ft (15.2 m) and a deck 83 ft wide.

Who owns Mockingbird Lane over White Rock Lake?

It is owned by the City or Municipal Highway Agency.