Glenn Highway over Knik River Southbound

Fair Condition33 years old13,300 vehicles/day

Location

StateAlaska
CountyAnchorage
LocationMile Point 28.8
CarriesGlenn Highway
CrossesKnik River Southbound
Coordinates61.48150, -149.25320

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1532.2 ft (467 m)
Max Span202.1 ft (61.6 m)
Deck Width40.0 ft (12.2 m)
Deck Area5697.4 sq m
Main Spans8
Year Built1993

Traffic

Avg Daily Traffic13,300 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number1885

Nearby Bridges

Glenn Highway over Knik River Northbound 0.0 mi Fair Glenn Highway over Knik River Access U.c. 0.6 mi Good Old Glenn Palmer over Old Glenn Overcrossing 0.6 mi Fair Old Glenn Palmer over Old Glenn HWY Overhead 0.7 mi Good Glenn Highway over Knik Riv. Overflow N.b. 1.0 mi Fair Glenn Highway over Knik Riv. Overflow S.b. 1.0 mi Fair Glenn Highway over Matanuska Riv Southbound 1.5 mi Fair Glenn Highway over Matanuska Riv Northbound 1.6 mi Fair Glenn Highway over Glenn HWY Overhead NB 3.4 mi Fair Glenn Highway over Glenn HWY Overhead SB 3.5 mi Fair