US Bridges

US 169 over Csah 29

Fair

Mille Lacs County, Minnesota · 1.2 MI N of JCT TH 95 · Structure no. 48016

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
199 ft
3 main spans
Daily traffic
9,650
2018 count
Owner
State
State Highway Agency

About this bridge

US 169 over Csah 29 is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Csah 29 in Mille Lacs County, Minnesota. It was built in 1979, so it is 46 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 9,650 vehicles a day, roughly 4% of them trucks, projected to reach 9,150 by 2038. The structure is 199 ft (60.7 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 29
Location1.2 MI N of JCT TH 95
RouteU.S. Route 169
CountyMille Lacs County
StateMinnesota
Coordinates45.5949, -93.60103
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 alignment7: Better than present minimum criteria
Operating rating62.8 US tons
Inventory rating37.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length199 ft (60.7 m)
Longest span96 ft (29.4 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,650 (2018)
Projected traffic9,150 by 2038
Trucks4%
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 29 built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 169 over Csah 29 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 US 169 over Csah 29 carry?

About 9,650 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is US 169 over Csah 29?

The structure is 199 ft (60.7 m) long with a longest span of 96 ft (29.4 m) and a deck 44 ft wide.

Who owns US 169 over Csah 29?

It is owned by the State Highway Agency.