US Bridges

Quincy RD over Waterway

Poor

Cass County, Iowa · 075352701 · Structure no. 000000000366215

Built
1975
50 years old
Condition
Poor
inspected February 2024
Type
Culvert
Steel
Length
37 ft
2 main spans
Daily traffic
91
2022 count
Owner
County
County Highway Agency

About this bridge

Quincy RD over Waterway is a steel culvert carrying Quincy RD over Waterway in Cass County, Iowa. It was built in 1975, so it is 50 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 91 vehicles a day, roughly 7% of them trucks, projected to reach 91 by 2044. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesQuincy RD
CrossesWaterway
Location075352701
RouteCounty Highway 0
CountyCass County
StateIowa
Coordinates41.27313, -94.86156
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2022)
Projected traffic91 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Quincy RD over Waterway built?

It was built in 1975, making it 50 years old in 2025.

What condition is Quincy RD over Waterway in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Quincy RD over Waterway carry?

About 91 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Quincy RD over Waterway?

The structure is 37 ft (11.3 m) long with a longest span of 16 ft (4.9 m).

Who owns Quincy RD over Waterway?

It is owned by the County Highway Agency.