US Bridges

Ivanhoe RD over Dills Run

Fair

Linn County, Iowa · 082053004 · Structure no. 000000000220121

Built
2006
19 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
48 ft
2 main spans
Daily traffic
255
2022 count
Owner
County
County Highway Agency

About this bridge

Ivanhoe RD over Dills Run is a wood or timber slab carrying Ivanhoe RD over Dills Run in Linn County, Iowa. It was built in 2006, so it is 19 years old, younger 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 255 vehicles a day, roughly 21% of them trucks, projected to reach 255 by 2044. The structure is 48 ft (14.6 m) long and 30 ft wide.

CarriesIvanhoe RD
CrossesDills Run
Location082053004
RouteCounty Highway 0
StateIowa
Coordinates41.88165, -91.46935
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating63.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span23 ft (7 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2022)
Projected traffic255 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ivanhoe RD over Dills Run built?

It was built in 2006, making it 19 years old in 2025.

What condition is Ivanhoe RD over Dills Run 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 October 2024.

How much traffic does Ivanhoe RD over Dills Run carry?

About 255 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Ivanhoe RD over Dills Run?

The structure is 48 ft (14.6 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.

Who owns Ivanhoe RD over Dills Run?

It is owned by the County Highway Agency.