US Bridges

Truman RD over Drainage

Fair

Cass County, Iowa · 077342701 · Structure no. 000000000000330

Built
1900
125 years old
Condition
Fair
inspected March 2024
Type
Channel Beam
Concrete
Length
45 ft
1 main span
Daily traffic
95
2022 count
Owner
County
County Highway Agency

About this bridge

Truman RD over Drainage is a concrete channel beam carrying Truman RD over Drainage 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 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 95 vehicles a day, roughly 9% of them trucks, projected to reach 95 by 2044. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesTruman RD
CrossesDrainage
Location077342701
RouteCity Street 0
CountyCass County
StateIowa
Coordinates41.44615, -94.75519
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.9 US tons
Inventory rating19 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2022)
Projected traffic95 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Truman RD over Drainage built?

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

What condition is Truman RD over Drainage 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 March 2024.

How much traffic does Truman RD over Drainage carry?

About 95 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Truman RD over Drainage?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 20 ft wide.

Who owns Truman RD over Drainage?

It is owned by the County Highway Agency.