Structure 24C0252 · Sacramento County, CA

Mack Road over Morrison Creek

Carries Mack Road over Morrison Creek, 0.6 Mi W/o Franklin BLVD.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT306 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

306 ft end to end, longest span 32 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built198244 years old
Length306.1 ft93.3 m
Daily traffic29,416counted 2015
Last inspectedNovember 2024every 48 months

Location

StateCalifornia
CountySacramento
Location0.6 Mi W/o Franklin BLVD
CarriesMack Road
CrossesMorrison Creek
Coordinates38.47726, -121.46031

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length306.1 ft (93.3 m)
Max Span32.2 ft (9.8 m)
Deck Width106.0 ft (32.3 m)
Deck Area3013.6 sq m
Main Spans10
Year Built1982

Traffic

Avg Daily Traffic29,416 (2015)
Truck Traffic10%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number24C0252

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges