US Bridges

Walnut Hill LN over Dallas N Tollway

Fair

Dallas County, Texas · 0.65 MI E of Inwood RD · Structure no. 1805709W0750008

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
1 main span
Daily traffic
25,833
2014 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Walnut Hill LN over Dallas N Tollway is a steel stringer/multi-beam or girder carrying Walnut Hill LN over Dallas N Tollway in Dallas County, Texas. It was built in 1966, so it is 59 years old, older 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 25,833 vehicles a day, roughly 3% of them trucks, projected to reach 36,099 by 2041. The structure is 99 ft (30.2 m) long and 84 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesWalnut Hill LN
CrossesDallas N Tollway
Location0.65 MI E of Inwood RD
CountyDallas County
StateTexas
Coordinates32.88013, -96.80969
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length99 ft (30.2 m)
Longest span98 ft (29.9 m)
Deck width84 ft (25.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,833 (2014)
Projected traffic36,099 by 2041
Trucks3%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$18,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Walnut Hill LN over Dallas N Tollway built?

It was built in 1966, making it 59 years old in 2025.

What condition is Walnut Hill LN over Dallas N Tollway 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 March 2023.

How much traffic does Walnut Hill LN over Dallas N Tollway carry?

About 25,833 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Walnut Hill LN over Dallas N Tollway?

The structure is 99 ft (30.2 m) long with a longest span of 98 ft (29.9 m) and a deck 84 ft wide.

Who owns Walnut Hill LN over Dallas N Tollway?

It is owned by the Local Toll Authority.