US Bridges

Sullivan Crk Trail over Black Creek

FairPosted for load

Chippewa County, Michigan · 8 MI NW of Rudyard · Structure no. 000000000001663

Built
1950
75 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
54 ft
3 main spans
Daily traffic
40
1986 count
Owner
County
County Highway Agency

About this bridge

Sullivan Crk Trail over Black Creek is a steel continuous stringer/multi-beam or girder carrying Sullivan Crk Trail over Black Creek in Chippewa County, Michigan. It was built in 1950, so it is 75 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 40 vehicles a day, projected to reach 70 by 2019. The structure is 54 ft (16.4 m) long and 16 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesSullivan Crk Trail
CrossesBlack Creek
Location8 MI NW of Rudyard
RouteCounty Highway 0
CountyChippewa County
StateMichigan
Coordinates46.26854, -84.7179
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.7 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length54 ft (16.4 m)
Longest span21 ft (6.4 m)
Deck width16 ft (5 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1986)
Projected traffic70 by 2019
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$90,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sullivan Crk Trail over Black Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Sullivan Crk Trail over Black Creek 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 June 2023.

How much traffic does Sullivan Crk Trail over Black Creek carry?

About 40 vehicles per day (1986 count).

How long is Sullivan Crk Trail over Black Creek?

The structure is 54 ft (16.4 m) long with a longest span of 21 ft (6.4 m) and a deck 16 ft wide.

Who owns Sullivan Crk Trail over Black Creek?

It is owned by the County Highway Agency.