US Bridges

M 988 over Willow Creek

Fair

Olmsted County, Minnesota · 0.8 MI S of JCT TH 52 · Structure no. 55072

Built
2005
20 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
121 ft
3 main spans
Daily traffic
5,000
2002 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 988 over Willow Creek is a concrete continuous slab carrying M 988 over Willow Creek in Olmsted County, Minnesota. It was built in 2005, so it is 20 years old, younger than the Minnesota average of 38.5 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 5,000 vehicles a day, projected to reach 5,000 by 2029. The structure is 121 ft (36.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 988
CrossesWillow Creek
Location0.8 MI S of JCT TH 52
RouteCity Street 988
CountyOlmsted County
StateMinnesota
Coordinates43.96685, -92.46384
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length121 ft (36.8 m)
Longest span45 ft (13.6 m)
Deck width55 ft (16.8 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2002)
Projected traffic5,000 by 2029
Trucks—
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M 988 over Willow Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is M 988 over Willow 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 June 2023.

How much traffic does M 988 over Willow Creek carry?

About 5,000 vehicles per day (2002 count).

How long is M 988 over Willow Creek?

The structure is 121 ft (36.8 m) long with a longest span of 45 ft (13.6 m) and a deck 55 ft wide.

Who owns M 988 over Willow Creek?

It is owned by the City or Municipal Highway Agency.