US Bridges

Maple Street over Long Hollow Creek

Fair

Lewis County, Idaho · In Nezperce;maple & 9th. · Structure no. 000000000029770

Built
1920
105 years old, rebuilt 1965
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
70
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maple Street over Long Hollow Creek is a concrete continuous slab carrying Maple Street over Long Hollow Creek in Lewis County, Idaho. It was built in 1920 and reconstructed in 1965, so it is 105 years old, older than the Idaho average of 45.3 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.

It carries about 70 vehicles a day, roughly 10% of them trucks, projected to reach 105 by 2039. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMaple Street
CrossesLong Hollow Creek
LocationIn Nezperce;maple & 9th.
RouteCity Street 0
StateIdaho
Coordinates46.22978, -116.239
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
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$222,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Maple Street over Long Hollow Creek built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1965.

What condition is Maple Street over Long Hollow 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 July 2024.

How much traffic does Maple Street over Long Hollow Creek carry?

About 70 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Maple Street over Long Hollow Creek?

The structure is 32 ft (9.8 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Maple Street over Long Hollow Creek?

It is owned by the City or Municipal Highway Agency.