US Bridges

FM over Hog Run

Good

Iowa County, Iowa · 079100704 · Structure no. 000000000189321

Built
1999
26 years old
Condition
Good
inspected March 2022
Type
Slab
Concrete Continuous
Length
75 ft
3 main spans
Daily traffic
2,760
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Hog Run is a concrete continuous slab carrying FM over Hog Run in Iowa County, Iowa. It was built in 1999, so it is 26 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 2,760 vehicles a day, roughly 7% of them trucks, projected to reach 2,760 by 2043. The structure is 75 ft (22.9 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM
CrossesHog Run
Location079100704
RouteCounty Highway 0
StateIowa
Coordinates41.66226, -92.06662
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.1 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span29 ft (8.8 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,760 (2022)
Projected traffic2,760 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Hog Run built?

It was built in 1999, making it 26 years old in 2025.

What condition is FM over Hog Run 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 March 2022.

How much traffic does FM over Hog Run carry?

About 2,760 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is FM over Hog Run?

The structure is 75 ft (22.9 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns FM over Hog Run?

It is owned by the County Highway Agency.