US Bridges

Abbey RD over Stream

Fair

Clayton County, Iowa · 094062906 · Structure no. 000000000120900

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Abbey RD over Stream is a concrete culvert carrying Abbey RD over Stream in Clayton County, Iowa. It was built in 1955, so it is 70 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 25 vehicles a day, projected to reach 25 by 2044. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesAbbey RD
CrossesStream
Location094062906
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.92294, -91.57784
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Abbey RD over Stream built?

It was built in 1955, making it 70 years old in 2025.

What condition is Abbey RD over Stream 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 Abbey RD over Stream carry?

About 25 vehicles per day (2022 count).

How long is Abbey RD over Stream?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Abbey RD over Stream?

It is owned by the County Highway Agency.