US Bridges

I-69 EB over Holly Drain

Fair

Shiawassee County, Michigan · 0.3 MI NE of M-71 · Structure no. 000000000009736

Built
1961
64 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
192,000
2011 count
Owner
State
State Highway Agency

About this bridge

I-69 EB over Holly Drain is a steel stringer/multi-beam or girder carrying I-69 EB over Holly Drain 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 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 192,000 vehicles a day, roughly 17% of them trucks, projected to reach 212,000 by 2031. The structure is 60 ft (18.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-69 EB
CrossesHolly Drain
Location0.3 MI NE of M-71
RouteInterstate 69
CountyShiawassee County
StateMichigan
Coordinates42.92889, -83.99488
Functional classRural Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span57 ft (17.3 m)
Deck width47 ft (14.3 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192,000 (2011)
Projected traffic212,000 by 2031
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-69 EB over Holly Drain built?

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

What condition is I-69 EB over Holly Drain 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 August 2023.

How much traffic does I-69 EB over Holly Drain carry?

About 192,000 vehicles per day (2011 count), of which roughly 17% are trucks.

How long is I-69 EB over Holly Drain?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.3 m) and a deck 47 ft wide.

Who owns I-69 EB over Holly Drain?

It is owned by the State Highway Agency.