US Bridges

240th ST over Trib Fox River

Good

Davis County, Iowa · 068120901 · Structure no. 000000000133301

Built
2023
2 years old
Condition
Good
inspected May 2024
Type
Slab
Steel
Length
50 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

240th ST over Trib Fox River is a steel slab carrying 240th ST over Trib Fox River in Davis County, Iowa. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 50 by 2044. The structure is 50 ft (15.2 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries240th ST
CrossesTrib Fox River
Location068120901
RouteCounty Highway 0
CountyDavis County
StateIowa
Coordinates40.71146, -92.25243
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 240th ST over Trib Fox River built?

It was built in 2023, making it 2 years old in 2025.

What condition is 240th ST over Trib Fox 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 May 2024.

How much traffic does 240th ST over Trib Fox River carry?

About 50 vehicles per day (2022 count).

How long is 240th ST over Trib Fox River?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.

Who owns 240th ST over Trib Fox River?

It is owned by the County Highway Agency.