US Bridges

Nostwick Road over Betsie River

PoorPosted for load

Benzie County, Michigan · 4MI N 2.5MI E of Thmpsnvl · Structure no. 000000000000766

Built
1900
125 years old, rebuilt 1988
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
2 main spans
Daily traffic
95
2008 count
Owner
County
County Highway Agency

About this bridge

Nostwick Road over Betsie River is a steel stringer/multi-beam or girder carrying Nostwick Road over Betsie River in Benzie County, Michigan. It was built in 1900 and reconstructed in 1988, so it is 125 years old, older 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. Its operating status is: posted for load restriction.

It carries about 95 vehicles a day, roughly 2% of them trucks, projected to reach 124 by 2018. The structure is 60 ft (18.2 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNostwick Road
CrossesBetsie River
Location4MI N 2.5MI E of Thmpsnvl
RouteCounty Highway 0
Coordinates44.57309, -85.88798
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating28.9 US tons
Inventory rating15.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span30 ft (9.1 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2008)
Projected traffic124 by 2018
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$984,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nostwick Road over Betsie River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1988.

What condition is Nostwick Road over Betsie 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 August 2024.

How much traffic does Nostwick Road over Betsie River carry?

About 95 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is Nostwick Road over Betsie River?

The structure is 60 ft (18.2 m) long with a longest span of 30 ft (9.1 m) and a deck 19 ft wide.

Who owns Nostwick Road over Betsie River?

It is owned by the County Highway Agency.