US Bridges

310th ST over Fletchall Creek

Good

Ringgold County, Iowa · 067302301 · Structure no. 000000000295411

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

310th ST over Fletchall Creek is a prestressed concrete stringer/multi-beam or girder carrying 310th ST over Fletchall Creek in Ringgold County, Iowa. It was built in 2021, so it is 4 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 45 vehicles a day, projected to reach 45 by 2043. The structure is 79 ft (24.1 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries310th ST
CrossesFletchall Creek
Location067302301
RouteCounty Highway 0
StateIowa
Coordinates40.59555, -94.27281
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length79 ft (24.1 m)
Longest span76 ft (23.2 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 310th ST over Fletchall Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is 310th ST over Fletchall 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 December 2023.

How much traffic does 310th ST over Fletchall Creek carry?

About 45 vehicles per day (2022 count).

How long is 310th ST over Fletchall Creek?

The structure is 79 ft (24.1 m) long with a longest span of 76 ft (23.2 m) and a deck 26 ft wide.

Who owns 310th ST over Fletchall Creek?

It is owned by the County Highway Agency.