US Bridges

I-69 EB over Swartz Creek

Fair

Genesee County, Michigan · E of Bristol RD · Structure no. 000000000002517

Built
1968
57 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
97 ft
3 main spans
Daily traffic
25,506
2007 count
Owner
State
State Highway Agency

About this bridge

I-69 EB over Swartz Creek is a prestressed concrete stringer/multi-beam or girder carrying I-69 EB over Swartz Creek 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 5 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 25,506 vehicles a day, roughly 11% of them trucks, projected to reach 65,034 by 2018. The structure is 97 ft (29.5 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-69 EB
CrossesSwartz Creek
LocationE of Bristol RD
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates42.97565, -83.76044
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length97 ft (29.5 m)
Longest span32 ft (9.9 m)
Deck width60 ft (18.3 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,506 (2007)
Projected traffic65,034 by 2018
Trucks11%
Lanes on structure4
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 Swartz Creek built?

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

What condition is I-69 EB over Swartz Creek 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 July 2024.

How much traffic does I-69 EB over Swartz Creek carry?

About 25,506 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is I-69 EB over Swartz Creek?

The structure is 97 ft (29.5 m) long with a longest span of 32 ft (9.9 m) and a deck 60 ft wide.

Who owns I-69 EB over Swartz Creek?

It is owned by the State Highway Agency.