US Bridges

M 1233 over Miller Creek

Fair

St. Louis County, Minnesota · 0.2 MI W of JCT TH 53 · Structure no. R0084

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
224
1985 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 1233 over Miller Creek is a concrete culvert carrying M 1233 over Miller Creek in St. Louis County, Minnesota. It was built in 1985, so it is 40 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 224 vehicles a day, projected to reach 224 by 2029. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 1233
CrossesMiller Creek
Location0.2 MI W of JCT TH 53
RouteCity Street 1233
Coordinates46.80635, -92.16502
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic224 (1985)
Projected traffic224 by 2029
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 M 1233 over Miller Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is M 1233 over Miller 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 October 2024.

How much traffic does M 1233 over Miller Creek carry?

About 224 vehicles per day (1985 count).

How long is M 1233 over Miller Creek?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m).

Who owns M 1233 over Miller Creek?

It is owned by the City or Municipal Highway Agency.