US Bridges

IH635 Hov Flyover over IH 635/US 75 Interchange

Fair

Dallas County, Texas · High Five Interchange · Structure no. 180570237401482

Built
2005
20 years old
Condition
Fair
inspected October 2023
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
6,521 ft
4 main spans
Daily traffic
23,200
2011 count
Owner
State
State Highway Agency

About this bridge

IH635 Hov Flyover over IH 635/US 75 Interchange is a prestressed concrete continuous segmental box girder carrying IH635 Hov Flyover over IH 635/US 75 Interchange in Dallas County, Texas. It was built in 2005, so it is 20 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 23,200 vehicles a day, roughly 11% of them trucks, projected to reach 32,480 by 2031. The structure is 6,521 ft (1,987.6 m) long and 22 ft wide.

Location

Open in Google Maps
CarriesIH635 Hov Flyover
CrossesIH 635/US 75 Interchange
LocationHigh Five Interchange
RouteInterstate 635
CountyDallas County
StateTexas
Coordinates32.92412, -96.76418
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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 typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+50 approach)
Design loadHS 20
Structure length6,521 ft (1,987.6 m)
Longest span300 ft (91.4 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,200 (2011)
Projected traffic32,480 by 2031
Trucks11%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
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 IH635 Hov Flyover over IH 635/US 75 Interchange built?

It was built in 2005, making it 20 years old in 2025.

What condition is IH635 Hov Flyover over IH 635/US 75 Interchange 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 October 2023.

How much traffic does IH635 Hov Flyover over IH 635/US 75 Interchange carry?

About 23,200 vehicles per day (2011 count), of which roughly 11% are trucks.

How long is IH635 Hov Flyover over IH 635/US 75 Interchange?

The structure is 6,521 ft (1,987.6 m) long with a longest span of 300 ft (91.4 m) and a deck 22 ft wide.

Who owns IH635 Hov Flyover over IH 635/US 75 Interchange?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).