FM over Spruce Creek

Fair

Jackson County, Iowa · 087E43606 · Structure no. 000000000194971

Built: 1982; 43 years old
Condition: Fair; inspected March 2023
Type: Slab; Concrete Continuous
Length: 125 ft; 3 main spans
Daily traffic: 670; 2021 count
Owner: County; County Highway Agency

About this bridge

FM over Spruce Creek is a concrete continuous slab carrying FM over Spruce Creek in Jackson 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 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 670 vehicles a day, roughly 9% of them trucks, projected to reach 670 by 2043. The structure is 125 ft (38.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFM

CrossesSpruce Creek

Location087E43606

RouteCounty Highway 0

CountyJackson County

StateIowa

Coordinates42.30008, -90.44042

Functional classRural Minor 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	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMarch 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating62.3 US tons

Inventory rating36.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length125 ft (38.1 m)

Longest span49 ft (14.9 m)

Deck width33 ft (10.1 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2021)

Projected traffic670 by 2043

Trucks9%

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 proposedNone recorded

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Spruce Creek built?

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

What condition is FM over Spruce Creek 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 March 2023.

How much traffic does FM over Spruce Creek carry?

About 670 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FM over Spruce Creek?

The structure is 125 ft (38.1 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns FM over Spruce Creek?

It is owned by the County Highway Agency.