US Bridges

D22 145th Ave over Over Cc RR

Fair

Delaware County, Iowa · 089063506 · Structure no. 000000000023021

Built
1978
47 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
155 ft
3 main spans
Daily traffic
1,100
2022 count
Owner
County
County Highway Agency

About this bridge

D22 145th Ave over Over Cc RR is a prestressed concrete stringer/multi-beam or girder carrying D22 145th Ave over Over Cc RR in Delaware County, Iowa. It was built in 1978, so it is 47 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 6 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 1,100 vehicles a day, roughly 14% of them trucks, projected to reach 1,100 by 2044. The structure is 155 ft (47.2 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesD22 145th Ave
CrossesOver Cc RR
Location089063506
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.4809, -91.51948
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.9 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span52 ft (15.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,100 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was D22 145th Ave over Over Cc RR built?

It was built in 1978, making it 47 years old in 2025.

What condition is D22 145th Ave over Over Cc RR 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 April 2024.

How much traffic does D22 145th Ave over Over Cc RR carry?

About 1,100 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is D22 145th Ave over Over Cc RR?

The structure is 155 ft (47.2 m) long with a longest span of 52 ft (15.9 m) and a deck 39 ft wide.

Who owns D22 145th Ave over Over Cc RR?

It is owned by the County Highway Agency.