US Bridges

Inwood RD SB over IH 635

Fair

Dallas County, Texas · 2.2 MI E of Marsh LN · Structure no. 180570237401407

Built
1985
40 years old, rebuilt 2018
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,734 ft
3 main spans
Daily traffic
14,666
2020 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Inwood RD SB over IH 635 is a steel continuous stringer/multi-beam or girder carrying Inwood RD SB over IH 635 in Dallas County, Texas. It was built in 1985 and reconstructed in 2018, so it is 40 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 14,666 vehicles a day, roughly 5% of them trucks, projected to reach 20,532 by 2040. The structure is 1,734 ft (528.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInwood RD SB
CrossesIH 635
Location2.2 MI E of Marsh LN
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.92787, -96.82164
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+12 approach)
Design loadHS 20
Structure length1,734 ft (528.5 m)
Longest span145 ft (44.2 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,666 (2020)
Projected traffic20,532 by 2040
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$160,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Inwood RD SB over IH 635 built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2018.

What condition is Inwood RD SB over IH 635 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 September 2023.

How much traffic does Inwood RD SB over IH 635 carry?

About 14,666 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Inwood RD SB over IH 635?

The structure is 1,734 ft (528.5 m) long with a longest span of 145 ft (44.2 m) and a deck 40 ft wide.

Who owns Inwood RD SB over IH 635?

It is owned by the Local Toll Authority.