US Bridges

F-33 over US 61

Good

Scott County, Iowa · 2.3 Mi. N of Jct. SR F41 · Structure no. 000000000604620

Built
1981
44 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
268 ft
4 main spans
Daily traffic
680
2022 count
Owner
State
State Highway Agency

About this bridge

F-33 over US 61 is a prestressed concrete stringer/multi-beam or girder carrying F-33 over US 61 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 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 680 vehicles a day, roughly 10% of them trucks, projected to reach 680 by 2044. The structure is 268 ft (81.7 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesF-33
CrossesUS 61
Location2.3 Mi. N of Jct. SR F41
RouteCounty Highway 0
StateIowa
Coordinates41.7278, -90.5689
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.8 US tons
Inventory rating45.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length268 ft (81.7 m)
Longest span92 ft (28 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic680 (2022)
Projected traffic680 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 F-33 over US 61 built?

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

What condition is F-33 over US 61 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 F-33 over US 61 carry?

About 680 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is F-33 over US 61?

The structure is 268 ft (81.7 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns F-33 over US 61?

It is owned by the State Highway Agency.