US Bridges

Newburg RD over I-69

Poor

Shiawassee County, Michigan · 2.9 MI SW of M-71 · Structure no. 000000000009750

Built
1961
64 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
268 ft
4 main spans
Daily traffic
674
1997 count
Owner
State
State Highway Agency

About this bridge

Newburg RD over I-69 is a steel stringer/multi-beam or girder carrying Newburg RD over I-69 in Shiawassee County, Michigan. It was built in 1961, so it is 64 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 674 vehicles a day, roughly 2% of them trucks, projected to reach 775 by 2017. The structure is 268 ft (81.7 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesNewburg RD
CrossesI-69
Location2.9 MI SW of M-71
RouteCounty Highway 0
CountyShiawassee County
StateMichigan
Coordinates42.90949, -84.05153
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length268 ft (81.7 m)
Longest span92 ft (28 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic674 (1997)
Projected traffic775 by 2017
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Newburg RD over I-69 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Newburg RD over I-69 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Newburg RD over I-69 carry?

About 674 vehicles per day (1997 count), of which roughly 2% are trucks.

How long is Newburg RD over I-69?

The structure is 268 ft (81.7 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns Newburg RD over I-69?

It is owned by the State Highway Agency.