US Bridges

Rossi Street over Loggers Creek

Fair

Ada County, Idaho · In Boise;rossi ST · Structure no. 000000000025895

Built
1979
46 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
77 ft
2 main spans
Daily traffic
23,500
2023 count
Owner
County
County Highway Agency

About this bridge

Rossi Street over Loggers Creek is a prestressed concrete tee beam carrying Rossi Street over Loggers Creek in Ada County, Idaho. It was built in 1979, so it is 46 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 6 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 23,500 vehicles a day, projected to reach 35,250 by 2042. The structure is 77 ft (23.5 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRossi Street
CrossesLoggers Creek
LocationIn Boise;rossi ST
RouteCity Street 0
StateIdaho
Coordinates43.59714, -116.18694
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating37.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span39 ft (11.9 m)
Deck width62 ft (18.8 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,500 (2023)
Projected traffic35,250 by 2042
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$792,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rossi Street over Loggers Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Rossi Street over Loggers 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 October 2023.

How much traffic does Rossi Street over Loggers Creek carry?

About 23,500 vehicles per day (2023 count).

How long is Rossi Street over Loggers Creek?

The structure is 77 ft (23.5 m) long with a longest span of 39 ft (11.9 m) and a deck 62 ft wide.

Who owns Rossi Street over Loggers Creek?

It is owned by the County Highway Agency.