US Bridges

IH 35E NB over Loop 354 WB Conn

Fair

Dallas County, Texas · 1.9 MI NW of Mockingbird · Structure no. 180570019603127

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
151 ft
1 main span
Daily traffic
61,907
2019 count
Owner
State
State Highway Agency

About this bridge

IH 35E NB over Loop 354 WB Conn is a prestressed concrete stringer/multi-beam or girder carrying IH 35E NB over Loop 354 WB Conn 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 61,907 vehicles a day, roughly 10% of them trucks, projected to reach 90,080 by 2033. The structure is 151 ft (46 m) long and 57 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIH 35E NB
CrossesLoop 354 WB Conn
Location1.9 MI NW of Mockingbird
RouteInterstate 35
StateTexas
Coordinates32.84536, -96.87793
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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length151 ft (46 m)
Longest span63 ft (19.2 m)
Deck width57 ft (17.3 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,907 (2019)
Projected traffic90,080 by 2033
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$21,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35E NB over Loop 354 WB Conn built?

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

What condition is IH 35E NB over Loop 354 WB Conn 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 Loop 354 WB Conn carry?

About 61,907 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is IH 35E NB over Loop 354 WB Conn?

The structure is 151 ft (46 m) long with a longest span of 63 ft (19.2 m) and a deck 57 ft wide.

Who owns IH 35E NB over Loop 354 WB Conn?

It is owned by the State Highway Agency.