US Bridges

Green Mt RD 613 over Chapman Creek

Good

Madera County, California · 4.3 MI W Bailey Flats RD · Structure no. 41C0017

Built
1968
57 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
76 ft
3 main spans
Daily traffic
105
2020 count
Owner
County
County Highway Agency

About this bridge

Green Mt RD 613 over Chapman Creek is a concrete continuous slab carrying Green Mt RD 613 over Chapman Creek in Madera County, California. It was built in 1968, so it is 57 years old, older 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 105 vehicles a day, roughly 6% of them trucks, projected to reach 191 by 2041. The structure is 76 ft (23.2 m) long and 31 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesGreen Mt RD 613
CrossesChapman Creek
Location4.3 MI W Bailey Flats RD
RouteCounty Highway 0
Coordinates37.25829, -119.95036
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2020)
Projected traffic191 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Mt RD 613 over Chapman Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Green Mt RD 613 over Chapman Creek 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 2023.

How much traffic does Green Mt RD 613 over Chapman Creek carry?

About 105 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Green Mt RD 613 over Chapman Creek?

The structure is 76 ft (23.2 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns Green Mt RD 613 over Chapman Creek?

It is owned by the County Highway Agency.