US Bridges

Bond Falls Road over Mid Br Ontonagon River

PoorPosted for load

Ontonagon County, Michigan · 4 MI E of HWY 45 · Structure no. 000000000008515

Built
1940
85 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
2 main spans
Daily traffic
400
1997 count
Owner
County
County Highway Agency

About this bridge

Bond Falls Road over Mid Br Ontonagon River is a steel stringer/multi-beam or girder carrying Bond Falls Road over Mid Br Ontonagon River in Ontonagon County, Michigan. It was built in 1940, so it is 85 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 400 vehicles a day, projected to reach 400 by 2017. The structure is 55 ft (16.7 m) long and 24 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesBond Falls Road
CrossesMid Br Ontonagon River
Location4 MI E of HWY 45
RouteCounty Highway 6616
CountyOntonagon County
StateMichigan
Coordinates46.40854, -89.12916
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length55 ft (16.7 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (1997)
Projected traffic400 by 2017
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$160,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bond Falls Road over Mid Br Ontonagon River built?

It was built in 1940, making it 85 years old in 2025.

What condition is Bond Falls Road over Mid Br Ontonagon 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 Bond Falls Road over Mid Br Ontonagon River carry?

About 400 vehicles per day (1997 count).

How long is Bond Falls Road over Mid Br Ontonagon River?

The structure is 55 ft (16.7 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns Bond Falls Road over Mid Br Ontonagon River?

It is owned by the County Highway Agency.