US Bridges

240th ST over Stream

Good

Delaware County, Iowa · 088061401 · Structure no. 000000000366725

Built
2021
4 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
21 ft
2 main spans
Daily traffic
90
2017 count
Owner
County
County Highway Agency

About this bridge

240th ST over Stream is a steel culvert carrying 240th ST over Stream in Delaware 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 90 vehicles a day, projected to reach 90 by 2044. The structure is 21 ft (6.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries240th ST
CrossesStream
Location088061401
RouteCounty Highway 0
StateIowa
Coordinates42.44181, -91.50349
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2017)
Projected traffic90 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 240th ST over Stream built?

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

What condition is 240th ST over Stream 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 January 2024.

How much traffic does 240th ST over Stream carry?

About 90 vehicles per day (2017 count).

How long is 240th ST over Stream?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m) and a deck 26 ft wide.

Who owns 240th ST over Stream?

It is owned by the County Highway Agency.