US Bridges

Anamosa Reform over Buffalo Creek

FairPosted for load

Jones County, Iowa · In Quarry at St. Reform. · Structure no. 000000000699785

Built
1900
125 years old, rebuilt 2000
Condition
Fair
inspected May 2023
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
—
2022 count
Owner
State
Other State Agency

About this bridge

Anamosa Reform over Buffalo Creek is a steel truss - thru carrying Anamosa Reform over Buffalo Creek in Jones County, Iowa. It was built in 1900 and reconstructed in 2000, so it is 125 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. Its operating status is: posted for load restriction.

No traffic count is recorded. The structure is 102 ft (31.1 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesAnamosa Reform
CrossesBuffalo Creek
LocationIn Quarry at St. Reform.
RouteState Lands Road 0
CountyJones County
StateIowa
Coordinates42.12414, -91.32048
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating26.3 US tons
Inventory rating14.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Anamosa Reform over Buffalo Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2000.

What condition is Anamosa Reform over Buffalo Creek 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 May 2023.

How much traffic does Anamosa Reform over Buffalo Creek carry?

No traffic count is recorded for this structure.

How long is Anamosa Reform over Buffalo Creek?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.

Who owns Anamosa Reform over Buffalo Creek?

It is owned by the Other State Agency.