US Bridges

210th Avenue over Drainage Ditch 5

Fair

Clinton County, Iowa · 080E20104 · Structure no. 000000000121530

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
750
2022 count
Owner
County
County Highway Agency

About this bridge

210th Avenue over Drainage Ditch 5 is a concrete continuous slab carrying 210th Avenue over Drainage Ditch 5 in Clinton County, Iowa. It was built in 1965, so it is 60 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 750 vehicles a day, roughly 14% of them trucks, projected to reach 750 by 2045. The structure is 100 ft (30.5 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
Carries210th Avenue
CrossesDrainage Ditch 5
Location080E20104
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.76095, -90.68274
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.4 US tons
Inventory rating33.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2022)
Projected traffic750 by 2045
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 210th Avenue over Drainage Ditch 5 built?

It was built in 1965, making it 60 years old in 2025.

What condition is 210th Avenue over Drainage Ditch 5 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 January 2025.

How much traffic does 210th Avenue over Drainage Ditch 5 carry?

About 750 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is 210th Avenue over Drainage Ditch 5?

The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns 210th Avenue over Drainage Ditch 5?

It is owned by the County Highway Agency.