US Bridges

Fifth ST (old 99W) over Rosina Draw

Fair

Colusa County, California · 9.9 MI N of Yolo CO Line · Structure no. 15C0046M

Built
1951
74 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
59 ft
3 main spans
Daily traffic
6,687
2014 count
Owner
County
County Highway Agency

About this bridge

Fifth ST (old 99W) over Rosina Draw is a concrete continuous slab carrying Fifth ST (old 99W) over Rosina Draw in Colusa County, California. It was built in 1951, so it is 74 years old, older 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 5 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 6,687 vehicles a day, roughly 10% of them trucks, projected to reach 5,568 by 2042. The structure is 59 ft (18.1 m) long and 42 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesFifth ST (old 99W)
CrossesRosina Draw
Location9.9 MI N of Yolo CO Line
RouteCounty Highway 0
CountyColusa County
StateCalifornia
Coordinates39.05324, -122.08059
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length59 ft (18.1 m)
Longest span23 ft (7 m)
Deck width42 ft (12.9 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,687 (2014)
Projected traffic5,568 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Fifth ST (old 99W) over Rosina Draw built?

It was built in 1951, making it 74 years old in 2025.

What condition is Fifth ST (old 99W) over Rosina Draw 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 October 2023.

How much traffic does Fifth ST (old 99W) over Rosina Draw carry?

About 6,687 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Fifth ST (old 99W) over Rosina Draw?

The structure is 59 ft (18.1 m) long with a longest span of 23 ft (7 m) and a deck 42 ft wide.

Who owns Fifth ST (old 99W) over Rosina Draw?

It is owned by the County Highway Agency.