US Bridges

NB US 61 over 210th ST

Fair

Scott County, Iowa · 1.1 Mi. N of Jct. I-80 · Structure no. 000000000604650

Built
1981
44 years old
Condition
Fair
inspected April 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
264 ft
3 main spans
Daily traffic
16,000
2022 count
Owner
State
State Highway Agency

About this bridge

NB US 61 over 210th ST is a steel continuous stringer/multi-beam or girder carrying NB US 61 over 210th ST in Scott County, Iowa. It was built in 1981, so it is 44 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 16,000 vehicles a day, roughly 11% of them trucks, projected to reach 16,000 by 2042. The structure is 264 ft (80.5 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesNB US 61
Crosses210th ST
Location1.1 Mi. N of Jct. I-80
RouteU.S. Route 61
CountyScott County
StateIowa
Coordinates41.6106, -90.56319
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.6 US tons
Inventory rating35.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2022)
Projected traffic16,000 by 2042
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB US 61 over 210th ST built?

It was built in 1981, making it 44 years old in 2025.

What condition is NB US 61 over 210th ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2022.

How much traffic does NB US 61 over 210th ST carry?

About 16,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is NB US 61 over 210th ST?

The structure is 264 ft (80.5 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns NB US 61 over 210th ST?

It is owned by the State Highway Agency.