US Bridges

220th ST over Lone Grove Creek

Good

Guthrie County, Iowa · 079330101 · Structure no. 000000000365635

Built
2010
15 years old
Condition
Good
inspected November 2022
Type
Channel Beam
Concrete
Length
45 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

220th ST over Lone Grove Creek is a concrete channel beam carrying 220th ST over Lone Grove Creek in Guthrie County, Iowa. It was built in 2010, so it is 15 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 20 vehicles a day, projected to reach 20 by 2042. The structure is 45 ft (13.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries220th ST
CrossesLone Grove Creek
Location079330101
RouteCounty Highway 0
CountyGuthrie County
StateIowa
Coordinates41.68847, -94.63087
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.7 US tons
Inventory rating38.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 220th ST over Lone Grove Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is 220th ST over Lone Grove Creek 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 November 2022.

How much traffic does 220th ST over Lone Grove Creek carry?

About 20 vehicles per day (2022 count).

How long is 220th ST over Lone Grove Creek?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 26 ft wide.

Who owns 220th ST over Lone Grove Creek?

It is owned by the County Highway Agency.