US Bridges

Msas 172 over N Branch Nine Mile Crk

Good

Hennepin County, Minnesota · 0.6 MI N of JCT 77th ST · Structure no. L4368

Built
1975
50 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
7,100
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Msas 172 over N Branch Nine Mile Crk is a concrete culvert carrying Msas 172 over N Branch Nine Mile Crk in Hennepin County, Minnesota. It was built in 1975, so it is 50 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 7,100 vehicles a day, projected to reach 5,900 by 2039. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMsas 172
CrossesN Branch Nine Mile Crk
Location0.6 MI N of JCT 77th ST
RouteCity Street 172
Coordinates44.87124, -93.35111
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length40 ft (12.2 m)
Longest span19 ft (5.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2019)
Projected traffic5,900 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Msas 172 over N Branch Nine Mile Crk built?

It was built in 1975, making it 50 years old in 2025.

What condition is Msas 172 over N Branch Nine Mile Crk 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 October 2023.

How much traffic does Msas 172 over N Branch Nine Mile Crk carry?

About 7,100 vehicles per day (2019 count).

How long is Msas 172 over N Branch Nine Mile Crk?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.7 m).

Who owns Msas 172 over N Branch Nine Mile Crk?

It is owned by the City or Municipal Highway Agency.