US Bridges

S Marsalis Ave NB over Zoo Access RD

Fair

Dallas County, Texas · 0.6 MI S of IH 35E · Structure no. 1805709M1900002

Built
1956
69 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
94 ft
3 main spans
Daily traffic
6,256
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Marsalis Ave NB over Zoo Access RD is a steel continuous stringer/multi-beam or girder carrying S Marsalis Ave NB over Zoo Access RD in Dallas County, Texas. It was built in 1956, so it is 69 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 6,256 vehicles a day, roughly 3% of them trucks, projected to reach 17,349 by 2041. The structure is 94 ft (28.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesS Marsalis Ave NB
CrossesZoo Access RD
Location0.6 MI S of IH 35E
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.73634, -96.81375
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length94 ft (28.7 m)
Longest span36 ft (11 m)
Deck width36 ft (11 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,256 (2019)
Projected traffic17,349 by 2041
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Marsalis Ave NB over Zoo Access RD built?

It was built in 1956, making it 69 years old in 2025.

What condition is S Marsalis Ave NB over Zoo Access 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 May 2023.

How much traffic does S Marsalis Ave NB over Zoo Access RD carry?

About 6,256 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is S Marsalis Ave NB over Zoo Access RD?

The structure is 94 ft (28.7 m) long with a longest span of 36 ft (11 m) and a deck 36 ft wide.

Who owns S Marsalis Ave NB over Zoo Access RD?

It is owned by the City or Municipal Highway Agency.