US Bridges

Newburg Road over Shiawassee River

Fair

Shiawassee County, Michigan · 2.2 MI N of Bancroft · Structure no. 000000000009788

Built
1999
26 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
157 ft
2 main spans
Daily traffic
1,140
2011 count
Owner
County
County Highway Agency

About this bridge

Newburg Road over Shiawassee River is a prestressed concrete box beam or girders - multiple carrying Newburg Road over Shiawassee River in Shiawassee County, Michigan. It was built in 1999, so it is 26 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 1,140 vehicles a day, roughly 5% of them trucks, projected to reach 1,694 by 2031. The structure is 157 ft (48 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNewburg Road
CrossesShiawassee River
Location2.2 MI N of Bancroft
RouteCounty Highway 0
CountyShiawassee County
StateMichigan
Coordinates42.90973, -84.06316
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.7 US tons
Inventory rating61.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length157 ft (48 m)
Longest span79 ft (24 m)
Deck width41 ft (12.4 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,140 (2011)
Projected traffic1,694 by 2031
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Newburg Road over Shiawassee River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Newburg Road over Shiawassee 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 May 2024.

How much traffic does Newburg Road over Shiawassee River carry?

About 1,140 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Newburg Road over Shiawassee River?

The structure is 157 ft (48 m) long with a longest span of 79 ft (24 m) and a deck 41 ft wide.

Who owns Newburg Road over Shiawassee River?

It is owned by the County Highway Agency.