SH 55 over Boulder Creek

Fair Condition27 years old6,000 vehicles/day

Location

StateIdaho
CountyValley
LocationAt Donnelly Scl
CarriesSH 55
CrossesBoulder Creek
Coordinates44.72692, -116.07436

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length57.1 ft (17.4 m)
Max Span55.1 ft (16.8 m)
Deck Width42.7 ft (13 m)
Deck Area226.2 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic6,000 (2023)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000014851

Nearby Bridges

Stc 3988;roseberry over Boulder Creek 0.3 mi Good Stc 3988;roseberry over Lake Fork 1.1 mi Fair Stc 3988;roseberry over Willow Creek 1.3 mi Poor S3944;farm To Mrkt over Willow Creek 1.4 mi Poor Norwood RD over Mud Creek 1.7 mi Fair Stc 3938;roseberry over Mud Creek 1.8 mi Good SH 55 over Gold Fork River 2.2 mi Fair S3944;farm To Mrkt over Stover Creek 2.5 mi Fair Nisula Road over Mud Creek 3.1 mi Poor S3944;farm To Mrkt over Boulder Creek 3.2 mi Good