US Bridges

US 169 over Csah 33

Fair

Mille Lacs County, Minnesota · 0.5 MI N of JCT TH 23 · Structure no. 48019

Built
1986
39 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
4,800
2014 count
Owner
State
State Highway Agency

About this bridge

US 169 over Csah 33 is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Csah 33 in Mille Lacs County, Minnesota. It was built in 1986, so it is 39 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 5 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 4,800 vehicles a day, roughly 7% of them trucks, projected to reach 4,800 by 2039. The structure is 153 ft (46.5 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 169
CrossesCsah 33
Location0.5 MI N of JCT TH 23
RouteU.S. Route 169
Coordinates45.76429, -93.64114
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.8 US tons
Inventory rating35.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.5 m)
Longest span71 ft (21.6 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2014)
Projected traffic4,800 by 2039
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 33 built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 169 over Csah 33 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 US 169 over Csah 33 carry?

About 4,800 vehicles per day (2014 count), of which roughly 7% are trucks.

How long is US 169 over Csah 33?

The structure is 153 ft (46.5 m) long with a longest span of 71 ft (21.6 m) and a deck 44 ft wide.

Who owns US 169 over Csah 33?

It is owned by the State Highway Agency.