US Bridges

Zorrilla Street over San Francisco River

FairPosted for load

Greenlee County, Arizona · 100 W JCT US 191 · Structure no. 09633

Built
1917
108 years old, rebuilt 2020
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
216 ft
1 main span
Daily traffic
415
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Zorrilla Street over San Francisco River is a steel truss - thru carrying Zorrilla Street over San Francisco River in Greenlee County, Arizona. It was built in 1917 and reconstructed in 2020, so it is 108 years old, older than the Arizona average of 47.8 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. Its operating status is: posted for load restriction.

It carries about 415 vehicles a day, roughly 1% of them trucks, projected to reach 425 by 2042. The structure is 216 ft (65.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesZorrilla Street
CrossesSan Francisco River
Location100 W JCT US 191
RouteCity Street 0
StateArizona
Coordinates33.056, -109.299
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12 US tons
Inventory rating7.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length216 ft (65.8 m)
Longest span210 ft (64 m)
Deck width32 ft (9.7 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck11 ft (3.4 m)

Traffic and service

Average daily traffic415 (2022)
Projected traffic425 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Zorrilla Street over San Francisco River built?

It was built in 1917, making it 108 years old in 2025. It was reconstructed in 2020.

What condition is Zorrilla Street over San Francisco River 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 August 2023.

How much traffic does Zorrilla Street over San Francisco River carry?

About 415 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Zorrilla Street over San Francisco River?

The structure is 216 ft (65.8 m) long with a longest span of 210 ft (64 m) and a deck 32 ft wide.

Who owns Zorrilla Street over San Francisco River?

It is owned by the Town or Township Highway Agency.