US Bridges

IH 20 Conn E over IH 635 Ramp C

Fair

Dallas County, Texas · 1.1 MI N of US 175 · Structure no. 180570009513395

Built
1987
38 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,473 ft
18 main spans
Daily traffic
4,660
2013 count
Owner
State
State Highway Agency

About this bridge

IH 20 Conn E over IH 635 Ramp C is a prestressed concrete stringer/multi-beam or girder carrying IH 20 Conn E over IH 635 Ramp C in Dallas County, Texas. It was built in 1987, so it is 38 years old, younger 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 4,660 vehicles a day, roughly 21% of them trucks, projected to reach 6,530 by 2033. The structure is 1,473 ft (449 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesIH 20 Conn E
CrossesIH 635 Ramp C
Location1.1 MI N of US 175
RouteInterstate 20
CountyDallas County
StateTexas
Coordinates32.70418, -96.62306
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.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length1,473 ft (449 m)
Longest span122 ft (37.2 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,660 (2013)
Projected traffic6,530 by 2033
Trucks21%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 20 Conn E over IH 635 Ramp C built?

It was built in 1987, making it 38 years old in 2025.

What condition is IH 20 Conn E over IH 635 Ramp C 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 August 2023.

How much traffic does IH 20 Conn E over IH 635 Ramp C carry?

About 4,660 vehicles per day (2013 count), of which roughly 21% are trucks.

How long is IH 20 Conn E over IH 635 Ramp C?

The structure is 1,473 ft (449 m) long with a longest span of 122 ft (37.2 m) and a deck 28 ft wide.

Who owns IH 20 Conn E over IH 635 Ramp C?

It is owned by the State Highway Agency.