US Bridges

I-69 & Ramp over Howland & Hewitt Drain

Fair

Genesee County, Michigan · 0.2 MI E of Linden RD · Structure no. 000000000002522

Built
1968
57 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
39,658
2007 count
Owner
State
State Highway Agency

About this bridge

I-69 & Ramp over Howland & Hewitt Drain is a concrete culvert carrying I-69 & Ramp over Howland & Hewitt Drain in Genesee County, Michigan. It was built in 1968, so it is 57 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 39,658 vehicles a day, roughly 14% of them trucks, projected to reach 49,369 by 2018. The structure is 20 ft (6.1 m) long.

Location

Open in Google Maps
CarriesI-69 & Ramp
CrossesHowland & Hewitt Drain
Location0.2 MI E of Linden RD
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates42.97089, -83.76886
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating74.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length20 ft (6.1 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,658 (2007)
Projected traffic49,369 by 2018
Trucks14%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 & Ramp over Howland & Hewitt Drain built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-69 & Ramp over Howland & Hewitt 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 December 2023.

How much traffic does I-69 & Ramp over Howland & Hewitt Drain carry?

About 39,658 vehicles per day (2007 count), of which roughly 14% are trucks.

How long is I-69 & Ramp over Howland & Hewitt Drain?

The structure is 20 ft (6.1 m) long with a longest span of 5 ft (1.5 m).

Who owns I-69 & Ramp over Howland & Hewitt Drain?

It is owned by the State Highway Agency.