US Bridges

Missouri Flat Road over US Highway 50

Good

El Dorado County, California · 03-ED-050-R15.06 · Structure no. 25 0121

Built
2008
17 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
185 ft
2 main spans
Daily traffic
60,000
2008 count
Owner
State
State Highway Agency

About this bridge

Missouri Flat Road over US Highway 50 is a concrete continuous box beam or girders - multiple carrying Missouri Flat Road over US Highway 50 in El Dorado County, California. It was built in 2008, so it is 17 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60,000 vehicles a day, roughly 10% of them trucks, projected to reach 84,956 by 2044. The structure is 185 ft (56.5 m) long and 106 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMissouri Flat Road
CrossesUS Highway 50
Location03-ED-050-R15.06
RouteCity Street 0
Coordinates38.71144, -120.83967
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length185 ft (56.5 m)
Longest span93 ft (28.2 m)
Deck width106 ft (32.4 m)
Roadway width94 ft (28.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,000 (2008)
Projected traffic84,956 by 2044
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Missouri Flat Road over US Highway 50 built?

It was built in 2008, making it 17 years old in 2025.

What condition is Missouri Flat Road over US Highway 50 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Missouri Flat Road over US Highway 50 carry?

About 60,000 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Missouri Flat Road over US Highway 50?

The structure is 185 ft (56.5 m) long with a longest span of 93 ft (28.2 m) and a deck 106 ft wide.

Who owns Missouri Flat Road over US Highway 50?

It is owned by the State Highway Agency.