US Bridges

E.Robins RD over Christopher Creek

Good

Linn County, Iowa · 084072600 · Structure no. 000000000221601

Built
1985
40 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
5,794
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E.Robins RD over Christopher Creek is a concrete continuous culvert carrying E.Robins RD over Christopher Creek in Linn County, Iowa. It was built in 1985, so it is 40 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 5,794 vehicles a day, projected to reach 5,794 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesE.Robins RD
CrossesChristopher Creek
Location084072600
RouteCity Street 0
StateIowa
Coordinates42.05377, -91.62289
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,794 (2022)
Projected traffic5,794 by 2042
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E.Robins RD over Christopher Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is E.Robins RD over Christopher 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 April 2022.

How much traffic does E.Robins RD over Christopher Creek carry?

About 5,794 vehicles per day (2022 count).

How long is E.Robins RD over Christopher Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns E.Robins RD over Christopher Creek?

It is owned by the City or Municipal Highway Agency.