US Bridges

Local - 765th over Waterway

Poor

Cass County, Iowa · 076341104 · Structure no. 000000000098980

Built
1900
125 years old
Condition
Poor
inspected February 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Local - 765th over Waterway is a concrete continuous culvert carrying Local - 765th over Waterway in Cass County, Iowa. It was built in 1900, so it is 125 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 35 vehicles a day, projected to reach 35 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal - 765th
CrossesWaterway
Location076341104
RouteCounty Highway 0
CountyCass County
StateIowa
Coordinates41.39506, -94.72939
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$404,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local - 765th over Waterway built?

It was built in 1900, making it 125 years old in 2025.

What condition is Local - 765th 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 Local - 765th over Waterway carry?

About 35 vehicles per day (2022 count).

How long is Local - 765th over Waterway?

The structure is 29 ft (8.8 m) long with a longest span of 15 ft (4.6 m).

Who owns Local - 765th over Waterway?

It is owned by the County Highway Agency.