US Bridges

Curtis Road over M-14

Fair

Washtenaw County, Michigan · 3 MI W of Wayne CO Line · Structure no. 000000000010922

Built
1975
50 years old, rebuilt 2006
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
326 ft
4 main spans
Daily traffic
2,328
1994 count
Owner
State
State Highway Agency

About this bridge

Curtis Road over M-14 is a steel stringer/multi-beam or girder carrying Curtis Road over M-14 in Washtenaw County, Michigan. It was built in 1975 and reconstructed in 2006, so it is 50 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 2,328 vehicles a day, roughly 3% of them trucks, projected to reach 2,677 by 2014. The structure is 326 ft (99.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCurtis Road
CrossesM-14
Location3 MI W of Wayne CO Line
RouteCounty Highway 0
CountyWashtenaw County
StateMichigan
Coordinates42.33842, -83.60584
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length326 ft (99.4 m)
Longest span121 ft (36.9 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,328 (1994)
Projected traffic2,677 by 2014
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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 Curtis Road over M-14 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2006.

What condition is Curtis Road 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 September 2024.

How much traffic does Curtis Road over M-14 carry?

About 2,328 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Curtis Road over M-14?

The structure is 326 ft (99.4 m) long with a longest span of 121 ft (36.9 m) and a deck 44 ft wide.

Who owns Curtis Road over M-14?

It is owned by the State Highway Agency.