US Bridges

SR 188 over Sycamore Creek

Good

Gila County, Arizona · 19.3 MI S JCT SR 87 · Structure no. 06618

Built
1977
48 years old
Condition
Good
inspected March 2022
Type
Culvert
Steel
Length
105 ft
7 main spans
Daily traffic
897
2020 count
Owner
State
State Highway Agency

About this bridge

SR 188 over Sycamore Creek is a steel culvert carrying SR 188 over Sycamore Creek in Gila County, Arizona. It was built in 1977, so it is 48 years old, older 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 897 vehicles a day, roughly 24% of them trucks, projected to reach 907 by 2040. The structure is 105 ft (32 m) long. If it were closed, the detour would be 72.1 mi (116 km).

CarriesSR 188
CrossesSycamore Creek
Location19.3 MI S JCT SR 87
RouteState Highway 188
StateArizona
Coordinates33.8105, -111.2883
Functional classRural Major Collector

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 inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans7
Design loadHS 20
Structure length105 ft (32 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic897 (2020)
Projected traffic907 by 2040
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.1 mi (116 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 SR 188 over Sycamore Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is SR 188 over Sycamore 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 March 2022.

How much traffic does SR 188 over Sycamore Creek carry?

About 897 vehicles per day (2020 count), of which roughly 24% are trucks.

How long is SR 188 over Sycamore Creek?

The structure is 105 ft (32 m) long with a longest span of 13 ft (4 m).

Who owns SR 188 over Sycamore Creek?

It is owned by the State Highway Agency.