Msas 101 over Unstable Soil

Fair

Dakota County, Minnesota · 0.2 MI W of JCT TH 149 · Structure no. R0812

Built: 1974; 51 years old
Condition: Fair; inspected September 2024
Type: Slab; Concrete Continuous
Length: 421 ft; 28 main spans
Daily traffic: 3,100; 2018 count
Owner: City; City or Municipal Highway Agency

About this bridge

Msas 101 over Unstable Soil is a concrete continuous slab carrying Msas 101 over Unstable Soil in Dakota County, Minnesota. It was built in 1974, so it is 51 years old, older 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 3,100 vehicles a day, projected to reach 3,300 by 2038. The structure is 421 ft (128.3 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps

CarriesMsas 101

CrossesUnstable Soil

Location0.2 MI W of JCT TH 149

RouteCity Street 101

CountyDakota County

StateMinnesota

Coordinates44.89089, -93.12478

Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.

Last inspectionSeptember 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating29.7 US tons

Inventory rating22.8 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans28

Design loadHS 20

Structure length421 ft (128.3 m)

Longest span15 ft (4.6 m)

Deck width45 ft (13.8 m)

Roadway width44 ft (13.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2018)

Projected traffic3,300 by 2038

Trucks—

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency

Maintained byCity or Municipal Highway Agency

Historic statusHistorical significance not determinable at this time

Work proposedNone recorded

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was Msas 101 over Unstable Soil built?

It was built in 1974, making it 51 years old in 2025.

What condition is Msas 101 over Unstable Soil 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 September 2024.

How much traffic does Msas 101 over Unstable Soil carry?

About 3,100 vehicles per day (2018 count).

How long is Msas 101 over Unstable Soil?

The structure is 421 ft (128.3 m) long with a longest span of 15 ft (4.6 m) and a deck 45 ft wide.

Who owns Msas 101 over Unstable Soil?

It is owned by the City or Municipal Highway Agency.