US Bridges

Ramp B (eb) over M-14

Fair

Wayne County, Michigan · 0.9 MI W of Plymouth · Structure no. 000000000012665

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

About this bridge

Ramp B (eb) over M-14 is a steel stringer/multi-beam or girder carrying Ramp B (eb) 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 220 ft (67.1 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesRamp B (eb)
CrossesM-14
Location0.9 MI W of Plymouth
RouteState Highway 14
CountyWayne County
StateMichigan
Coordinates42.38561, -83.47556
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
Deck7 GoodSome minor problems.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length220 ft (67.1 m)
Longest span86 ft (26.1 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92,000 (2006)
Projected traffic110,000 by 2026
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp B (eb) over M-14 built?

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

What condition is Ramp B (eb) 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 Ramp B (eb) over M-14 carry?

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

How long is Ramp B (eb) over M-14?

The structure is 220 ft (67.1 m) long with a longest span of 86 ft (26.1 m) and a deck 29 ft wide.

Who owns Ramp B (eb) over M-14?

It is owned by the State Highway Agency.