US Bridges

Main Street South over Jim Ford Creek

Poor

Clearwater County, Idaho · In Weippe;main St. South · Structure no. 000000000029050

Built
1965
60 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
52 ft
2 main spans
Daily traffic
80
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street South over Jim Ford Creek is a steel continuous stringer/multi-beam or girder carrying Main Street South over Jim Ford Creek in Clearwater County, Idaho. It was built in 1965, so it is 60 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 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.

It carries about 80 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2039. The structure is 52 ft (15.8 m) long and 24 ft wide.

CarriesMain Street South
CrossesJim Ford Creek
LocationIn Weippe;main St. South
RouteCity Street 0
StateIdaho
Coordinates46.37425, -115.93933
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadHS 15
Structure length52 ft (15.8 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic120 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$333,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street South over Jim Ford Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Main Street South over Jim Ford 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 June 2024.

How much traffic does Main Street South over Jim Ford Creek carry?

About 80 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Main Street South over Jim Ford Creek?

The structure is 52 ft (15.8 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns Main Street South over Jim Ford Creek?

It is owned by the City or Municipal Highway Agency.