US Bridges

State Route 113 over Round Hill Creek

Fair

Solano County, California · 04-SOL-113-0.10 · Structure no. 23 0235

Built
2003
22 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
42 ft
1 main span
Daily traffic
4,500
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 113 over Round Hill Creek is a concrete slab carrying State Route 113 over Round Hill Creek in Solano County, California. It was built in 2003, so it is 22 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 4,500 vehicles a day, roughly 8% of them trucks, projected to reach 6,605 by 2046. The structure is 42 ft (12.8 m) long and 70 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesState Route 113
CrossesRound Hill Creek
Location04-SOL-113-0.10
RouteState Highway 113
Coordinates38.18475, -121.80609
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span40 ft (12.3 m)
Deck width70 ft (21.3 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2020)
Projected traffic6,605 by 2046
Trucks8%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed4.3 mi (7 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 113 over Round Hill Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is State Route 113 over Round Hill 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 State Route 113 over Round Hill Creek carry?

About 4,500 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is State Route 113 over Round Hill Creek?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.3 m) and a deck 70 ft wide.

Who owns State Route 113 over Round Hill Creek?

It is owned by the State Highway Agency.