US Bridges

County RD 2311 over San Francisco River

Good

Apache County, Arizona · 0.3 MI S JCT US 180 · Structure no. 07731

Built
1988
37 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
21 ft
3 main spans
Daily traffic
325
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 2311 over San Francisco River is a steel culvert carrying County RD 2311 over San Francisco River in Apache County, Arizona. It was built in 1988, so it is 37 years old, younger than the Arizona average of 47.8 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 325 vehicles a day, roughly 1% of them trucks, projected to reach 335 by 2042. The structure is 21 ft (6.4 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty RD 2311
CrossesSan Francisco River
Location0.3 MI S JCT US 180
RouteCounty Highway 0
StateArizona
Coordinates33.84318, -109.14134
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating58 US tons
Inventory rating33 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans3
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2022)
Projected traffic335 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 County RD 2311 over San Francisco River built?

It was built in 1988, making it 37 years old in 2025.

What condition is County RD 2311 over San Francisco River 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 May 2024.

How much traffic does County RD 2311 over San Francisco River carry?

About 325 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is County RD 2311 over San Francisco River?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m) and a deck 40 ft wide.

Who owns County RD 2311 over San Francisco River?

It is owned by the County Highway Agency.