US Bridges

N Story RD SB over Cottonwood Branch

Fair

Dallas County, Texas · 0.1 MI S of Walnut Hill · Structure no. 180570D08640022

Built
1974
51 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
91 ft
3 main spans
Daily traffic
5,456
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Story RD SB over Cottonwood Branch is a concrete stringer/multi-beam or girder carrying N Story RD SB over Cottonwood Branch in Dallas County, Texas. It was built in 1974, so it is 51 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 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 5,456 vehicles a day, roughly 3% of them trucks, projected to reach 8,579 by 2037. The structure is 91 ft (27.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN Story RD SB
CrossesCottonwood Branch
Location0.1 MI S of Walnut Hill
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.86485, -96.97723
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length91 ft (27.7 m)
Longest span30 ft (9.1 m)
Deck width40 ft (12.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,456 (2019)
Projected traffic8,579 by 2037
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Story RD SB over Cottonwood Branch built?

It was built in 1974, making it 51 years old in 2025.

What condition is N Story RD SB over Cottonwood Branch 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 May 2023.

How much traffic does N Story RD SB over Cottonwood Branch carry?

About 5,456 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is N Story RD SB over Cottonwood Branch?

The structure is 91 ft (27.7 m) long with a longest span of 30 ft (9.1 m) and a deck 40 ft wide.

Who owns N Story RD SB over Cottonwood Branch?

It is owned by the City or Municipal Highway Agency.