US Bridges

Moon RD over Trib to Saline River

Fair

Washtenaw County, Michigan · York Twp Sec 16 · Structure no. 000000000014361

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Culvert
Steel
Length
25 ft
2 main spans
Daily traffic
3,031
2017 count
Owner
County
County Highway Agency

About this bridge

Moon RD over Trib to Saline River is a steel culvert carrying Moon RD over Trib to Saline River in Washtenaw County, Michigan. It was built in 1975, 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 3,031 vehicles a day, roughly 9% of them trucks, projected to reach 3,486 by 2037. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMoon RD
CrossesTrib to Saline River
LocationYork Twp Sec 16
RouteCounty Highway 0
CountyWashtenaw County
StateMichigan
Coordinates42.1355, -83.7369
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating95.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,031 (2017)
Projected traffic3,486 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Moon RD over Trib to Saline River built?

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

What condition is Moon RD over Trib to Saline River 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 2024.

How much traffic does Moon RD over Trib to Saline River carry?

About 3,031 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is Moon RD over Trib to Saline River?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m).

Who owns Moon RD over Trib to Saline River?

It is owned by the County Highway Agency.