US Bridges

Burroughs ST over Flat River

Fair

Kent County, Michigan · 0.25 MI E of Lincoln Lk a · Structure no. 000000000005182

Built
1995
30 years old
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
125 ft
1 main span
Daily traffic
965
2015 count
Owner
County
County Highway Agency

About this bridge

Burroughs ST over Flat River is a steel truss - thru carrying Burroughs ST over Flat River in Kent County, Michigan. It was built in 1995, so it is 30 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 965 vehicles a day, roughly 8% of them trucks, projected to reach 1,544 by 2035. The structure is 125 ft (38.1 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBurroughs ST
CrossesFlat River
Location0.25 MI E of Lincoln Lk a
RouteCounty Highway 0
CountyKent County
StateMichigan
Coordinates42.96572, -85.35095
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length125 ft (38.1 m)
Longest span120 ft (36.6 m)
Deck width44 ft (13.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic965 (2015)
Projected traffic1,544 by 2035
Trucks8%
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 Burroughs ST over Flat River built?

It was built in 1995, making it 30 years old in 2025.

What condition is Burroughs ST over Flat 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 September 2024.

How much traffic does Burroughs ST over Flat River carry?

About 965 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Burroughs ST over Flat River?

The structure is 125 ft (38.1 m) long with a longest span of 120 ft (36.6 m) and a deck 44 ft wide.

Who owns Burroughs ST over Flat River?

It is owned by the County Highway Agency.