US Bridges

US 169 over Csah 102

Fair

St. Louis County, Minnesota · 2.6 MI W of JCT TH 53 · Structure no. 69059

Built
1970
55 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
231 ft
3 main spans
Daily traffic
4,700
2015 count
Owner
State
State Highway Agency

About this bridge

US 169 over Csah 102 is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Csah 102 in St. Louis County, Minnesota. It was built in 1970, so it is 55 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 4,700 vehicles a day, roughly 6% of them trucks, projected to reach 4,700 by 2039. The structure is 231 ft (70.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 169
CrossesCsah 102
Location2.6 MI W of JCT TH 53
RouteU.S. Route 169
CountySt. Louis County
StateMinnesota
Coordinates47.51859, -92.61519
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating37.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span95 ft (29.1 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2015)
Projected traffic4,700 by 2039
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 169 over Csah 102 built?

It was built in 1970, making it 55 years old in 2025.

What condition is US 169 over Csah 102 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 2023.

How much traffic does US 169 over Csah 102 carry?

About 4,700 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is US 169 over Csah 102?

The structure is 231 ft (70.4 m) long with a longest span of 95 ft (29.1 m) and a deck 44 ft wide.

Who owns US 169 over Csah 102?

It is owned by the State Highway Agency.