US Bridges

Coll 7488 over Mirdan Canal

Good

Valley County, Nebraska · .5N 2.7W Elyria · Structure no. C008810805P

Built
1985
40 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
45
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7488 over Mirdan Canal is a prestressed concrete stringer/multi-beam or girder carrying Coll 7488 over Mirdan Canal in Valley County, Nebraska. It was built in 1985, so it is 40 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, projected to reach 76 by 2033. The structure is 51 ft (15.5 m) long and 31 ft wide. If it were closed, the detour would be 118.1 mi (190 km).

Location

Open in Google Maps
CarriesColl 7488
CrossesMirdan Canal
Location.5N 2.7W Elyria
RouteCounty Highway 7488
CountyValley County
StateNebraska
Coordinates41.6901, -99.072
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 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 rating47.4 US tons
Inventory rating27.6 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 span51 ft (15.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (1998)
Projected traffic76 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed118.1 mi (190 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 Coll 7488 over Mirdan Canal built?

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

What condition is Coll 7488 over Mirdan Canal 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 November 2023.

How much traffic does Coll 7488 over Mirdan Canal carry?

About 45 vehicles per day (1998 count).

How long is Coll 7488 over Mirdan Canal?

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

Who owns Coll 7488 over Mirdan Canal?

It is owned by the County Highway Agency.