FM over Pilot Creek (DD#63)

Fair

Pocahontas County, Iowa · 093331301 · Structure no. 000000000280271

Built: 1986; 39 years old
Condition: Fair; inspected October 2024
Type: Slab; Concrete Continuous
Length: 78 ft; 3 main spans
Daily traffic: 399; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Pilot Creek (DD#63) is a concrete continuous slab carrying FM over Pilot Creek (DD#63) in Pocahontas County, Iowa. It was built in 1986, so it is 39 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 399 vehicles a day, roughly 22% of them trucks, projected to reach 399 by 2044. The structure is 78 ft (23.8 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM

CrossesPilot Creek (DD#63)

Location093331301

RouteCounty Highway 0

CountyPocahontas County

StateIowa

Coordinates42.87817, -94.69157

Functional classRural Major Collector

Condition and inspection

Fair

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

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionOctober 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating58.5 US tons

Inventory rating34.4 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length78 ft (23.8 m)

Longest span29 ft (8.8 m)

Deck width37 ft (11.3 m)

Roadway width34 ft (10.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic399 (2022)

Projected traffic399 by 2044

Trucks22%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Pilot Creek (DD#63) built?

It was built in 1986, making it 39 years old in 2025.

What condition is FM over Pilot Creek (DD#63) 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 2024.

How much traffic does FM over Pilot Creek (DD#63) carry?

About 399 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is FM over Pilot Creek (DD#63)?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 37 ft wide.

Who owns FM over Pilot Creek (DD#63)?

It is owned by the County Highway Agency.