US Bridges

Local over N Buffalo Creek

PoorPosted for load

Winnebago County, Iowa · 100243102 · Structure no. 000000000345560

Built
1949
76 years old, rebuilt 1986
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
45 ft
3 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Local over N Buffalo Creek is a wood or timber stringer/multi-beam or girder carrying Local over N Buffalo Creek in Winnebago County, Iowa. It was built in 1949 and reconstructed in 1986, so it is 76 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, projected to reach 5 by 2043. The structure is 45 ft (13.7 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesN Buffalo Creek
Location100243102
RouteCounty Highway 0
StateIowa
Coordinates43.43783, -93.73401
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.9 US tons
Inventory rating16.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span23 ft (7 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2043
Trucks0%
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 statusNot eligible for the National Register of Historic Places
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 Buffalo Creek built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1986.

What condition is Local over N 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 2023.

How much traffic does Local over N Buffalo Creek carry?

About 5 vehicles per day (2022 count).

How long is Local over N Buffalo Creek?

The structure is 45 ft (13.7 m) long with a longest span of 23 ft (7 m) and a deck 20 ft wide.

Who owns Local over N Buffalo Creek?

It is owned by the County Highway Agency.