US Bridges

FM over Minor Creek

Poor

Winneshiek County, Iowa · 099100604 · Structure no. 000000000349020

Built
1970
55 years old
Condition
Poor
inspected March 2023
Type
Slab
Concrete Continuous
Length
75 ft
3 main spans
Daily traffic
88
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Minor Creek is a concrete continuous slab carrying FM over Minor Creek in Winneshiek County, Iowa. It was built in 1970, so it is 55 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 88 vehicles a day, projected to reach 88 by 2043. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesMinor Creek
Location099100604
RouteCounty Highway 0
StateIowa
Coordinates43.41998, -92.08011
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic88 by 2043
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Minor Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is FM over Minor Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does FM over Minor Creek carry?

About 88 vehicles per day (2022 count).

How long is FM over Minor Creek?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns FM over Minor Creek?

It is owned by the County Highway Agency.