US Bridges

Northville RD over M-14

Fair

Wayne County, Michigan · 0.2 MI W of Plymouth · Structure no. 000000000011362

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
208 ft
4 main spans
Daily traffic
92,000
2006 count
Owner
State
State Highway Agency

About this bridge

Northville RD over M-14 is a steel stringer/multi-beam or girder carrying Northville RD over M-14 in Wayne 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 92,000 vehicles a day, roughly 7% of them trucks, projected to reach 110,000 by 2026. The structure is 208 ft (63.4 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNorthville RD
CrossesM-14
Location0.2 MI W of Plymouth
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.39086, -83.46555
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span76 ft (23.3 m)
Deck width78 ft (23.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92,000 (2006)
Projected traffic110,000 by 2026
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Northville RD over M-14 built?

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

What condition is Northville RD over M-14 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 October 2023.

How much traffic does Northville RD over M-14 carry?

About 92,000 vehicles per day (2006 count), of which roughly 7% are trucks.

How long is Northville RD over M-14?

The structure is 208 ft (63.4 m) long with a longest span of 76 ft (23.3 m) and a deck 78 ft wide.

Who owns Northville RD over M-14?

It is owned by the State Highway Agency.