US Bridges

Mulberry Road over Bear Creek

Fair

Lenawee County, Michigan · 0.1 MI West of Hodges HWY · Structure no. 000000000005549

Built
1977
48 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
70
2012 count
Owner
County
County Highway Agency

About this bridge

Mulberry Road over Bear Creek is a prestressed concrete tee beam carrying Mulberry Road over Bear Creek in Lenawee County, Michigan. It was built in 1977, so it is 48 years old, younger 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 70 vehicles a day, roughly 1% of them trucks, projected to reach 175 by 2031. The structure is 40 ft (12.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMulberry Road
CrossesBear Creek
Location0.1 MI West of Hodges HWY
RouteCounty Highway 4610
CountyLenawee County
StateMichigan
Coordinates41.74275, -83.97758
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating26.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2012)
Projected traffic175 by 2031
Trucks1%
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 Mulberry Road over Bear Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Mulberry Road over Bear Creek 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 March 2023.

How much traffic does Mulberry Road over Bear Creek carry?

About 70 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Mulberry Road over Bear Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 30 ft wide.

Who owns Mulberry Road over Bear Creek?

It is owned by the County Highway Agency.