US Bridges

Elbow CR RD over Elbow CR

Fair

Linn County, Iowa · 083051005 · Structure no. 000000000220591

Built
2000
25 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
48 ft
2 main spans
Daily traffic
78
2022 count
Owner
County
County Highway Agency

About this bridge

Elbow CR RD over Elbow CR is a wood or timber slab carrying Elbow CR RD over Elbow CR in Linn County, Iowa. It was built in 2000, so it is 25 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 78 vehicles a day, projected to reach 78 by 2044. The structure is 48 ft (14.6 m) long and 25 ft wide.

CarriesElbow CR RD
CrossesElbow CR
Location083051005
RouteCounty Highway 0
StateIowa
Coordinates42.00557, -91.42383
Functional classRural Local

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 alignment4: Meets minimum tolerable limits to be left in place as is
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 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 traffic78 (2022)
Projected traffic78 by 2044
Trucks0%
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 Elbow CR RD over Elbow CR built?

It was built in 2000, making it 25 years old in 2025.

What condition is Elbow CR RD over Elbow CR 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 Elbow CR RD over Elbow CR carry?

About 78 vehicles per day (2022 count).

How long is Elbow CR RD over Elbow CR?

The structure is 48 ft (14.6 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns Elbow CR RD over Elbow CR?

It is owned by the County Highway Agency.