US Bridges

Twin Lake RD over Middle Branch River

Fair

Osceola County, Michigan · Section 35 T19N R7W · Structure no. 000000000008638

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Slab
Wood or Timber
Length
93 ft
1 main span
Daily traffic
102
2016 count
Owner
County
County Highway Agency

About this bridge

Twin Lake RD over Middle Branch River is a wood or timber slab carrying Twin Lake RD over Middle Branch River in Osceola 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 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 102 vehicles a day, roughly 10% of them trucks, projected to reach 200 by 2036. The structure is 93 ft (28.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTwin Lake RD
CrossesMiddle Branch River
LocationSection 35 T19N R7W
RouteCounty Highway 0
CountyOsceola County
StateMichigan
Coordinates43.99161, -85.11769
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54.2 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1 (+2 approach)
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102 (2016)
Projected traffic200 by 2036
Trucks10%
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 Twin Lake RD over Middle Branch River built?

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

What condition is Twin Lake RD over Middle Branch 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 Twin Lake RD over Middle Branch River carry?

About 102 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Twin Lake RD over Middle Branch River?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Twin Lake RD over Middle Branch River?

It is owned by the County Highway Agency.