US Bridges

Cottonwood Ave over Mirdan Canal

Fair

Garfield County, Nebraska · .5W 1.3S Burwell · Structure no. C003600905

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
75
2003 count
Owner
County
County Highway Agency

About this bridge

Cottonwood Ave over Mirdan Canal is a prestressed concrete stringer/multi-beam or girder carrying Cottonwood Ave over Mirdan Canal in Garfield County, Nebraska. It was built in 1984, so it is 41 years old, younger than the Nebraska average of 47.1 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 75 vehicles a day, projected to reach 127 by 2033. The structure is 51 ft (15.5 m) long and 31 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesCottonwood Ave
CrossesMirdan Canal
Location.5W 1.3S Burwell
RouteCounty Highway 9
CountyGarfield County
StateNebraska
Coordinates41.7623, -99.1453
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span49 ft (14.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2003)
Projected traffic127 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cottonwood Ave over Mirdan Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is Cottonwood Ave over Mirdan Canal 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 Cottonwood Ave over Mirdan Canal carry?

About 75 vehicles per day (2003 count).

How long is Cottonwood Ave over Mirdan Canal?

The structure is 51 ft (15.5 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns Cottonwood Ave over Mirdan Canal?

It is owned by the County Highway Agency.