US Bridges

Mack Road over Morrison Creek

Fair

Sacramento County, California · 0.6 MI W/O Franklin Blvd · Structure no. 24C0252

Built
1982
43 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
306 ft
10 main spans
Daily traffic
29,416
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mack Road over Morrison Creek is a concrete continuous slab carrying Mack Road over Morrison Creek in Sacramento County, California. It was built in 1982, so it is 43 years old, younger than the California average of 54.8 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 29,416 vehicles a day, roughly 10% of them trucks, projected to reach 13,117 by 2046. The structure is 306 ft (93.3 m) long and 106 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMack Road
CrossesMorrison Creek
Location0.6 MI W/O Franklin Blvd
RouteCity Street 0
CountySacramento County
StateCalifornia
Coordinates38.47726, -121.46031
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20 + Mod
Structure length306 ft (93.3 m)
Longest span32 ft (9.8 m)
Deck width106 ft (32.3 m)
Roadway width94 ft (28.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,416 (2015)
Projected traffic13,117 by 2046
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mack Road over Morrison Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Mack Road over Morrison 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 November 2024.

How much traffic does Mack Road over Morrison Creek carry?

About 29,416 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Mack Road over Morrison Creek?

The structure is 306 ft (93.3 m) long with a longest span of 32 ft (9.8 m) and a deck 106 ft wide.

Who owns Mack Road over Morrison Creek?

It is owned by the City or Municipal Highway Agency.