US Bridges

Local over N Fork Buffalo Creek

PoorPosted for load

Winnebago County, Iowa · 099262501 · Structure no. 000000000345390

Built
1900
125 years old, rebuilt 1988
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
54 ft
3 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Local over N Fork Buffalo Creek is a wood or timber stringer/multi-beam or girder carrying Local over N Fork Buffalo Creek in Winnebago County, Iowa. It was built in 1900 and reconstructed in 1988, 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 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 5 vehicles a day, roughly 20% of them trucks, projected to reach 5 by 2044. The structure is 54 ft (16.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesN Fork Buffalo Creek
Location099262501
RouteCounty Highway 0
StateIowa
Coordinates43.37123, -93.85457
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating5.8 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span22 ft (6.7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$743,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over N Fork Buffalo Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1988.

What condition is Local over N Fork Buffalo 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 March 2024.

How much traffic does Local over N Fork Buffalo Creek carry?

About 5 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Local over N Fork Buffalo Creek?

The structure is 54 ft (16.5 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.

Who owns Local over N Fork Buffalo Creek?

It is owned by the County Highway Agency.