US Bridges

NB Mound RD over I-696

Fair

Macomb County, Michigan · In the City of Warren · Structure no. 000000000006100

Built
1976
49 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
175 ft
2 main spans
Daily traffic
33,000
2007 count
Owner
State
State Highway Agency

About this bridge

NB Mound RD over I-696 is a steel stringer/multi-beam or girder carrying NB Mound RD over I-696 in Macomb County, Michigan. It was built in 1976, so it is 49 years old, older than the Michigan average of 48.3 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 33,000 vehicles a day, roughly 3% of them trucks, projected to reach 36,300 by 2022. The structure is 175 ft (53.3 m) long and 81 ft wide.

Location

Open in Google Maps
CarriesNB Mound RD
CrossesI-696
LocationIn the City of Warren
RouteCounty Highway 2058
CountyMacomb County
StateMichigan
Coordinates42.48791, -83.04539
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating55.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length175 ft (53.3 m)
Longest span87 ft (26.4 m)
Deck width81 ft (24.7 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic33,000 (2007)
Projected traffic36,300 by 2022
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$137,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB Mound RD over I-696 built?

It was built in 1976, making it 49 years old in 2025.

What condition is NB Mound RD over I-696 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 April 2023.

How much traffic does NB Mound RD over I-696 carry?

About 33,000 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is NB Mound RD over I-696?

The structure is 175 ft (53.3 m) long with a longest span of 87 ft (26.4 m) and a deck 81 ft wide.

Who owns NB Mound RD over I-696?

It is owned by the State Highway Agency.