US Bridges

390th ST over Flemming Creek

GoodPosted for load

Crawford County, Iowa · 084370102 · Structure no. 000000000128441

Built
2016
9 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
3 main spans
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

390th ST over Flemming Creek is a steel stringer/multi-beam or girder carrying 390th ST over Flemming Creek in Crawford County, Iowa. It was built in 2016, so it is 9 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. Its operating status is: posted for other load-capacity restriction.

It carries about 30 vehicles a day, projected to reach 30 by 2044. The structure is 92 ft (27.9 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries390th ST
CrossesFlemming Creek
Location084370102
RouteCounty Highway 0
StateIowa
Coordinates42.11428, -95.11079
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.4 US tons
Inventory rating24.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length92 ft (27.9 m)
Longest span35 ft (10.7 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic30 by 2044
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 390th ST over Flemming Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is 390th ST over Flemming 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 March 2024.

How much traffic does 390th ST over Flemming Creek carry?

About 30 vehicles per day (2022 count).

How long is 390th ST over Flemming Creek?

The structure is 92 ft (27.9 m) long with a longest span of 35 ft (10.7 m) and a deck 25 ft wide.

Who owns 390th ST over Flemming Creek?

It is owned by the County Highway Agency.