US Bridges

K45 over Cleghorn Ditch

Good

Monona County, Iowa · 085463606 · Structure no. 000000000037221

Built
2019
6 years old
Condition
Good
inspected May 2022
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
976
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

K45 over Cleghorn Ditch is a concrete continuous slab carrying K45 over Cleghorn Ditch in Monona County, Iowa. It was built in 2019, so it is 6 years old, younger than the Iowa average of 45.5 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 976 vehicles a day, roughly 9% of them trucks, projected to reach 976 by 2042. The structure is 101 ft (30.8 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesK45
CrossesCleghorn Ditch
Location085463606
RouteCity Street 0
CountyMonona County
StateIowa
Coordinates42.13082, -96.15285
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic976 (2022)
Projected traffic976 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was K45 over Cleghorn Ditch built?

It was built in 2019, making it 6 years old in 2025.

What condition is K45 over Cleghorn Ditch 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 May 2022.

How much traffic does K45 over Cleghorn Ditch carry?

About 976 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is K45 over Cleghorn Ditch?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns K45 over Cleghorn Ditch?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.