US Bridges

I 90 over Lily Creek

Good

Martin County, Minnesota · 3.4 MI W of JCT TH 15 · Structure no. 46815

Built
1973
52 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
3,209
2022 count
Owner
State
State Highway Agency

About this bridge

I 90 over Lily Creek is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Lily Creek in Martin County, Minnesota. It was built in 1973, so it is 52 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,209 vehicles a day, roughly 22% of them trucks, projected to reach 4,500 by 2042. The structure is 66 ft (20 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI 90
CrossesLily Creek
Location3.4 MI W of JCT TH 15
RouteInterstate 90
CountyMartin County
StateMinnesota
Coordinates43.68061, -94.51409
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20 m)
Longest span64 ft (19.5 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,209 (2022)
Projected traffic4,500 by 2042
Trucks22%
Lanes on structure2
Traffic directionOne-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 90 over Lily Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is I 90 over Lily Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does I 90 over Lily Creek carry?

About 3,209 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is I 90 over Lily Creek?

The structure is 66 ft (20 m) long with a longest span of 64 ft (19.5 m) and a deck 44 ft wide.

Who owns I 90 over Lily Creek?

It is owned by the State Highway Agency.