US Bridges

Orchard ST over Little Bear Creek

PoorPosted for load

Poweshiek County, Iowa · 080142306 · Structure no. 000000000000820

Built
1912
113 years old
Condition
Poor
inspected December 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
340
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Orchard ST over Little Bear Creek is a concrete arch - deck carrying Orchard ST over Little Bear Creek in Poweshiek County, Iowa. It was built in 1912, so it is 113 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 340 vehicles a day, projected to reach 340 by 2043. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOrchard ST
CrossesLittle Bear Creek
Location080142306
RouteCity Street 0
StateIowa
Coordinates41.72562, -92.45028
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating17.7 US tons
Inventory rating14.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2022)
Projected traffic340 by 2043
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Orchard ST over Little Bear Creek built?

It was built in 1912, making it 113 years old in 2025.

What condition is Orchard ST over Little Bear Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Orchard ST over Little Bear Creek carry?

About 340 vehicles per day (2022 count).

How long is Orchard ST over Little Bear Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Orchard ST over Little Bear Creek?

It is owned by the City or Municipal Highway Agency.