US Bridges

IH 635 Conn C over IH 635/US 80

PoorPosted for load

Dallas County, Texas · 2.1 MI S of IH 30 · Structure no. 180570237402340

Built
1971
54 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,593 ft
4 main spans
Daily traffic
16,420
2013 count
Owner
State
State Highway Agency

About this bridge

IH 635 Conn C over IH 635/US 80 is a steel continuous stringer/multi-beam or girder carrying IH 635 Conn C over IH 635/US 80 in Dallas County, Texas. It was built in 1971, so it is 54 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 3 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. Its operating status is: posted for load restriction.

It carries about 16,420 vehicles a day, roughly 13% of them trucks, projected to reach 22,980 by 2033. The structure is 1,593 ft (485.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIH 635 Conn C
CrossesIH 635/US 80
Location2.1 MI S of IH 30
RouteInterstate 635
CountyDallas County
StateTexas
Coordinates32.79307, -96.62564
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+15 approach)
Design loadHS 20
Structure length1,593 ft (485.5 m)
Longest span163 ft (49.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,420 (2013)
Projected traffic22,980 by 2033
Trucks13%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 635 Conn C over IH 635/US 80 built?

It was built in 1971, making it 54 years old in 2025.

What condition is IH 635 Conn C over IH 635/US 80 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 August 2024.

How much traffic does IH 635 Conn C over IH 635/US 80 carry?

About 16,420 vehicles per day (2013 count), of which roughly 13% are trucks.

How long is IH 635 Conn C over IH 635/US 80?

The structure is 1,593 ft (485.5 m) long with a longest span of 163 ft (49.7 m) and a deck 26 ft wide.

Who owns IH 635 Conn C over IH 635/US 80?

It is owned by the State Highway Agency.