US Bridges

Nottawa Road over North Br Chippewa River

FairPosted for load

Isabella County, Michigan · Sec 11-12 Deerfield Twp · Structure no. 000000000004344

Built
1937
88 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
185
2002 count
Owner
County
County Highway Agency

About this bridge

Nottawa Road over North Br Chippewa River is a steel stringer/multi-beam or girder carrying Nottawa Road over North Br Chippewa River in Isabella County, Michigan. It was built in 1937, so it is 88 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 185 vehicles a day, projected to reach 253 by 2022. The structure is 48 ft (14.6 m) long and 22 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesNottawa Road
CrossesNorth Br Chippewa River
LocationSec 11-12 Deerfield Twp
RouteCounty Highway 0
CountyIsabella County
StateMichigan
Coordinates43.61618, -84.86796
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32 US tons
Inventory rating19.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans1
Design loadH 15
Structure length48 ft (14.6 m)
Longest span44 ft (13.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2002)
Projected traffic253 by 2022
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$207,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Nottawa Road over North Br Chippewa River built?

It was built in 1937, making it 88 years old in 2025.

What condition is Nottawa Road over North Br Chippewa 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 March 2024.

How much traffic does Nottawa Road over North Br Chippewa River carry?

About 185 vehicles per day (2002 count).

How long is Nottawa Road over North Br Chippewa River?

The structure is 48 ft (14.6 m) long with a longest span of 44 ft (13.4 m) and a deck 22 ft wide.

Who owns Nottawa Road over North Br Chippewa River?

It is owned by the County Highway Agency.