US Bridges

Ostrander RD over Saline River

Fair

Monroe County, Michigan · 2.7 MI E of Ann Arbor RD · Structure no. 000000000007281

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
770
2017 count
Owner
County
County Highway Agency

About this bridge

Ostrander RD over Saline River is a prestressed concrete box beam or girders - multiple carrying Ostrander RD over Saline River in Monroe County, Michigan. It was built in 1970, so it is 55 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 5 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 770 vehicles a day, roughly 2% of them trucks, projected to reach 886 by 2037. The structure is 120 ft (36.5 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesOstrander RD
CrossesSaline River
Location2.7 MI E of Ann Arbor RD
RouteCounty Highway 5878
CountyMonroe County
StateMichigan
Coordinates42.01977, -83.62341
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadH 20
Structure length120 ft (36.5 m)
Longest span39 ft (11.8 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic770 (2017)
Projected traffic886 by 2037
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Ostrander RD over Saline River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ostrander RD over 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 August 2024.

How much traffic does Ostrander RD over Saline River carry?

About 770 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Ostrander RD over Saline River?

The structure is 120 ft (36.5 m) long with a longest span of 39 ft (11.8 m) and a deck 37 ft wide.

Who owns Ostrander RD over Saline River?

It is owned by the County Highway Agency.