US Bridges

IH 35E NB over Mockingbird LN

Fair

Dallas County, Texas · 1.4 MI NW of Inwood RD · Structure no. 180570019603119

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
168 ft
2 main spans
Daily traffic
58,027
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35E NB over Mockingbird LN is a prestressed concrete stringer/multi-beam or girder carrying IH 35E NB over Mockingbird LN in Dallas County, Texas. It was built in 1959, so it is 66 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 6 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 58,027 vehicles a day, roughly 7% of them trucks, projected to reach 94,180 by 2033. The structure is 168 ft (51.2 m) long and 57 ft wide.

Location

Open in Google Maps
CarriesIH 35E NB
CrossesMockingbird LN
Location1.4 MI NW of Inwood RD
RouteInterstate 35
CountyDallas County
StateTexas
Coordinates32.81895, -96.86921
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to 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 spans2 (+2 approach)
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span50 ft (15.2 m)
Deck width57 ft (17.3 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,027 (2023)
Projected traffic94,180 by 2033
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35E NB over Mockingbird LN built?

It was built in 1959, making it 66 years old in 2025.

What condition is IH 35E NB over Mockingbird LN 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 2024.

How much traffic does IH 35E NB over Mockingbird LN carry?

About 58,027 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is IH 35E NB over Mockingbird LN?

The structure is 168 ft (51.2 m) long with a longest span of 50 ft (15.2 m) and a deck 57 ft wide.

Who owns IH 35E NB over Mockingbird LN?

It is owned by the State Highway Agency.