US Bridges

Hemlock Road over North Branch Bad River

Fair

Saginaw County, Michigan · 0.1 MI N of Colvin Road · Structure no. 000000000009240

Built
1998
27 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
2 main spans
Daily traffic
1,587
2021 count
Owner
County
County Highway Agency

About this bridge

Hemlock Road over North Branch Bad River is a prestressed concrete box beam or girders - multiple carrying Hemlock Road over North Branch Bad River in Saginaw County, Michigan. It was built in 1998, so it is 27 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 1,587 vehicles a day, roughly 5% of them trucks, projected to reach 1,750 by 2031. The structure is 120 ft (36.6 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHemlock Road
CrossesNorth Branch Bad River
Location0.1 MI N of Colvin Road
RouteCounty Highway 7323
Coordinates43.29694, -84.22937
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating58.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span70 ft (21.3 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,587 (2021)
Projected traffic1,750 by 2031
Trucks5%
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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hemlock Road over North Branch Bad River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Hemlock Road over North Branch Bad 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 Hemlock Road over North Branch Bad River carry?

About 1,587 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Hemlock Road over North Branch Bad River?

The structure is 120 ft (36.6 m) long with a longest span of 70 ft (21.3 m) and a deck 37 ft wide.

Who owns Hemlock Road over North Branch Bad River?

It is owned by the County Highway Agency.