US Bridges

IH 35E NB Conn over Dart & Dnt

Poor

Dallas County, Texas · 1.0 MI N of SP 366 · Structure no. 180570019603205

Built
1967
58 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,070 ft
11 main spans
Daily traffic
146,500
2012 count
Owner
Toll Authority
Local Toll Authority

About this bridge

IH 35E NB Conn over Dart & Dnt is a steel continuous stringer/multi-beam or girder carrying IH 35E NB Conn over Dart & Dnt in Dallas County, Texas. It was built in 1967, so it is 58 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 146,500 vehicles a day, roughly 6% of them trucks, projected to reach 205,100 by 2032. The structure is 1,070 ft (326.1 m) long and 24 ft wide.

Location

Open in Google Maps
CarriesIH 35E NB Conn
CrossesDart & Dnt
Location1.0 MI N of SP 366
CountyDallas County
StateTexas
Coordinates32.79764, -96.81498
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length1,070 ft (326.1 m)
Longest span116 ft (35.4 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146,500 (2012)
Projected traffic205,100 by 2032
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 Conn over Dart & Dnt built?

It was built in 1967, making it 58 years old in 2025.

What condition is IH 35E NB Conn over Dart & Dnt in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does IH 35E NB Conn over Dart & Dnt carry?

About 146,500 vehicles per day (2012 count), of which roughly 6% are trucks.

How long is IH 35E NB Conn over Dart & Dnt?

The structure is 1,070 ft (326.1 m) long with a longest span of 116 ft (35.4 m) and a deck 24 ft wide.

Who owns IH 35E NB Conn over Dart & Dnt?

It is owned by the Local Toll Authority.