US Bridges

Snell Road over Saline River

Poor

Monroe County, Michigan · 0.2 MI W of Plank Road · Structure no. 000000000007370

Built
1993
32 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
107 ft
3 main spans
Daily traffic
65
2005 count
Owner
County
County Highway Agency

About this bridge

Snell Road over Saline River is a prestressed concrete box beam or girders - multiple carrying Snell Road over Saline River in Monroe County, Michigan. It was built in 1993, so it is 32 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 65 vehicles a day, roughly 3% of them trucks, projected to reach 130 by 2025. The structure is 107 ft (32.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSnell Road
CrossesSaline River
Location0.2 MI W of Plank Road
RouteCounty Highway 0
Coordinates42.03083, -83.62104
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span42 ft (12.8 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2005)
Projected traffic130 by 2025
Trucks3%
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 Snell Road over Saline River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Snell Road over Saline River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Snell Road over Saline River carry?

About 65 vehicles per day (2005 count), of which roughly 3% are trucks.

How long is Snell Road over Saline River?

The structure is 107 ft (32.6 m) long with a longest span of 42 ft (12.8 m) and a deck 31 ft wide.

Who owns Snell Road over Saline River?

It is owned by the County Highway Agency.