US Bridges

200th ST over Boone River

Good

Hancock County, Iowa · 095261501 · Structure no. 000000000173591

Built
2014
11 years old
Condition
Good
inspected March 2022
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

200th ST over Boone River is a concrete continuous slab carrying 200th ST over Boone River in Hancock County, Iowa. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26 vehicles a day, projected to reach 26 by 2043. The structure is 71 ft (21.6 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries200th ST
CrossesBoone River
Location095261501
RouteCounty Highway 0
StateIowa
Coordinates43.05283, -93.90149
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 200th ST over Boone River built?

It was built in 2014, making it 11 years old in 2025.

What condition is 200th ST over Boone River 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 200th ST over Boone River carry?

About 26 vehicles per day (2022 count).

How long is 200th ST over Boone River?

The structure is 71 ft (21.6 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns 200th ST over Boone River?

It is owned by the County Highway Agency.