US Bridges

IH 635 Conn C over Seagoville RD

Fair

Dallas County, Texas · 0.9 MI N of US 175 · Structure no. 180570237402416

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
999 ft
2 main spans
Daily traffic
12,280
2013 count
Owner
State
State Highway Agency

About this bridge

IH 635 Conn C over Seagoville RD is a prestressed concrete stringer/multi-beam or girder carrying IH 635 Conn C over Seagoville RD 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 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 12,280 vehicles a day, roughly 12% of them trucks, projected to reach 17,200 by 2033. The structure is 999 ft (304.5 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesIH 635 Conn C
CrossesSeagoville RD
Location0.9 MI N of US 175
RouteInterstate 635
CountyDallas County
StateTexas
Coordinates32.70414, -96.62523
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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum 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 spans2 (+9 approach)
Design loadHS 20
Structure length999 ft (304.5 m)
Longest span135 ft (41.1 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,280 (2013)
Projected traffic17,200 by 2033
Trucks12%
Lanes on structure1
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 635 Conn C over Seagoville RD built?

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

What condition is IH 635 Conn C over Seagoville RD 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 June 2023.

How much traffic does IH 635 Conn C over Seagoville RD carry?

About 12,280 vehicles per day (2013 count), of which roughly 12% are trucks.

How long is IH 635 Conn C over Seagoville RD?

The structure is 999 ft (304.5 m) long with a longest span of 135 ft (41.1 m) and a deck 28 ft wide.

Who owns IH 635 Conn C over Seagoville RD?

It is owned by the State Highway Agency.