US Bridges

US 169 over Oneill Brook

Good

Mille Lacs County, Minnesota · 1.4 MI N of JCT TH 23 · Structure no. 95216

Built
1985
40 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
6,740
2022 count
Owner
State
State Highway Agency

About this bridge

US 169 over Oneill Brook is a concrete culvert carrying US 169 over Oneill Brook in Mille Lacs 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 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 6,740 vehicles a day, roughly 3% of them trucks, projected to reach 9,600 by 2042. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 169
CrossesOneill Brook
Location1.4 MI N of JCT TH 23
RouteU.S. Route 169
CountyMille Lacs County
StateMinnesota
Coordinates45.77649, -93.64741
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,740 (2022)
Projected traffic9,600 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 169 over Oneill Brook built?

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

What condition is US 169 over Oneill Brook 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 September 2024.

How much traffic does US 169 over Oneill Brook carry?

About 6,740 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is US 169 over Oneill Brook?

The structure is 27 ft (8.1 m) long with a longest span of 10 ft (3.1 m).

Who owns US 169 over Oneill Brook?

It is owned by the State Highway Agency.