US Bridges

Rolling Acre RD over East Blue Creek Trib to

Good

Linn County, Iowa · 085080507 · Structure no. 000000000222491

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Slab
Wood or Timber
Length
96 ft
4 main spans
Daily traffic
255
2022 count
Owner
County
County Highway Agency

About this bridge

Rolling Acre RD over East Blue Creek Trib to is a wood or timber slab carrying Rolling Acre RD over East Blue Creek Trib to in Linn County, Iowa. It was built in 2002, so it is 23 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 255 vehicles a day, roughly 15% of them trucks, projected to reach 255 by 2044. The structure is 96 ft (29.3 m) long and 25 ft wide.

CarriesRolling Acre RD
CrossesEast Blue Creek Trib to
Location085080507
RouteCounty Highway 0
StateIowa
Coordinates42.20053, -91.80051
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating86.3 US tons
Inventory rating63.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2022)
Projected traffic255 by 2044
Trucks15%
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 Rolling Acre RD over East Blue Creek Trib to built?

It was built in 2002, making it 23 years old in 2025.

What condition is Rolling Acre RD over East Blue Creek Trib to in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Rolling Acre RD over East Blue Creek Trib to carry?

About 255 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Rolling Acre RD over East Blue Creek Trib to?

The structure is 96 ft (29.3 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns Rolling Acre RD over East Blue Creek Trib to?

It is owned by the County Highway Agency.