US Bridges

Burr Oak Road over Swan Creek Drain #5100

FairPosted for load

Branch County, Michigan · Bronson Twp Sec 3 · Structure no. 000000000001126

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
419
2004 count
Owner
County
County Highway Agency

About this bridge

Burr Oak Road over Swan Creek Drain #5100 is a prestressed concrete box beam or girders - multiple carrying Burr Oak Road over Swan Creek Drain #5100 in Branch County, Michigan. It was built in 1964, so it is 61 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 6 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 419 vehicles a day, roughly 4% of them trucks, projected to reach 1,088 by 2024. The structure is 60 ft (18.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBurr Oak Road
CrossesSwan Creek Drain #5100
LocationBronson Twp Sec 3
RouteCounty Highway 1242
Coordinates41.89609, -85.22073
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length60 ft (18.2 m)
Longest span59 ft (17.9 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic419 (2004)
Projected traffic1,088 by 2024
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$8,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Burr Oak Road over Swan Creek Drain #5100 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Burr Oak Road over Swan Creek Drain #5100 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 October 2024.

How much traffic does Burr Oak Road over Swan Creek Drain #5100 carry?

About 419 vehicles per day (2004 count), of which roughly 4% are trucks.

How long is Burr Oak Road over Swan Creek Drain #5100?

The structure is 60 ft (18.2 m) long with a longest span of 59 ft (17.9 m) and a deck 30 ft wide.

Who owns Burr Oak Road over Swan Creek Drain #5100?

It is owned by the County Highway Agency.