I 15 Nbl & Sbl over Marsh Creek

Fair Condition55 years old12,000 vehicles/day

Location

StateIdaho
CountyBannock
Location11.1 S. Arimo
CarriesI 15 Nbl & Sbl
CrossesMarsh Creek
Coordinates42.42108, -112.18692

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length44.0 ft (13.4 m)
Max Span42.0 ft (12.8 m)
Deck Width113.8 ft (34.7 m)
Deck Area465.0 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic12,000 (2023)
Truck Traffic22%
Lanes On Bridge4

Inspection & Ownership

Last Inspection721
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000011070

Nearby Bridges

Treasure Lane over Marsh Creek 0.7 mi Fair I 15 Nbl over SH 40;downey Ic 0.7 mi Fair I 15 Sbl over SH 40;downey Ic 0.7 mi Fair I 15 Sbl over Woodland Rd.gs 0.7 mi Fair I 15 Nbl over Woodland Rd.gs 0.8 mi Fair Old Malad HWY over Marsh Creek 1.8 mi Good I 15 Sbl over Marsh Valley Road 3.4 mi Fair I 15 Nbl over Marsh Valley Road 3.4 mi Fair Bowman Road over I 15 Nb-sb;bowman Rd.gs 3.8 mi Fair