US Bridges

Agassiz Pool Road over Main Ditch 11

Good

Marshall County, Minnesota · Sec 26 T156N R42W · Structure no. 000032510-00059

Built
1967
58 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
40 ft
2 main spans
Daily traffic
40
2023 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Agassiz Pool Road over Main Ditch 11 is a concrete slab carrying Agassiz Pool Road over Main Ditch 11 in Marshall County, Minnesota. It was built in 1967, so it is 58 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 40 vehicles a day, projected to reach 50 by 2043. The structure is 40 ft (12.2 m) long and 14 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesAgassiz Pool Road
CrossesMain Ditch 11
LocationSec 26 T156N R42W
RouteFederal Lands Road 0
CountyMarshall County
StateMinnesota
Coordinates48.31483, -96.00983
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span19 ft (5.8 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic40 (2023)
Projected traffic50 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 Agassiz Pool Road over Main Ditch 11 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Agassiz Pool Road over Main Ditch 11 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 August 2023.

How much traffic does Agassiz Pool Road over Main Ditch 11 carry?

About 40 vehicles per day (2023 count).

How long is Agassiz Pool Road over Main Ditch 11?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.8 m) and a deck 14 ft wide.

Who owns Agassiz Pool Road over Main Ditch 11?

It is owned by the Bureau of Fish and Wildlife.