US Bridges

NB US 61 over Devils Creek

Good

Lee County, Iowa · 2.5 Mi. S of Jct. Ia 2 · Structure no. 000000000606730

Built
1999
26 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
418 ft
4 main spans
Daily traffic
3,850
2022 count
Owner
State
State Highway Agency

About this bridge

NB US 61 over Devils Creek is a prestressed concrete stringer/multi-beam or girder carrying NB US 61 over Devils Creek in Lee County, Iowa. It was built in 1999, so it is 26 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 3,850 vehicles a day, roughly 9% of them trucks, projected to reach 3,850 by 2043. The structure is 418 ft (127.4 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesNB US 61
CrossesDevils Creek
Location2.5 Mi. S of Jct. Ia 2
RouteU.S. Route 61
CountyLee County
StateIowa
Coordinates40.59833, -91.42334
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating38.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length418 ft (127.4 m)
Longest span106 ft (32.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2022)
Projected traffic3,850 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NB US 61 over Devils Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is NB US 61 over Devils 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 September 2023.

How much traffic does NB US 61 over Devils Creek carry?

About 3,850 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is NB US 61 over Devils Creek?

The structure is 418 ft (127.4 m) long with a longest span of 106 ft (32.3 m) and a deck 43 ft wide.

Who owns NB US 61 over Devils Creek?

It is owned by the State Highway Agency.