US Bridges

FM K-64 over Deep Creek

Good

Plymouth County, Iowa · 092440406 · Structure no. 000000000274261

Built
1982
43 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
938
2021 count
Owner
County
County Highway Agency

About this bridge

FM K-64 over Deep Creek is a prestressed concrete stringer/multi-beam or girder carrying FM K-64 over Deep Creek in Plymouth County, Iowa. It was built in 1982, so it is 43 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 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 938 vehicles a day, projected to reach 938 by 2044. The structure is 167 ft (50.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM K-64
CrossesDeep Creek
Location092440406
RouteCounty Highway 0
StateIowa
Coordinates42.81548, -96.0562
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span59 ft (18 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic938 (2021)
Projected traffic938 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM K-64 over Deep Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is FM K-64 over Deep Creek 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 2023.

How much traffic does FM K-64 over Deep Creek carry?

About 938 vehicles per day (2021 count).

How long is FM K-64 over Deep Creek?

The structure is 167 ft (50.9 m) long with a longest span of 59 ft (18 m) and a deck 32 ft wide.

Who owns FM K-64 over Deep Creek?

It is owned by the County Highway Agency.