US Bridges

SR 88; FAS 214 over Boulder Creek

Fair

Maricopa County, Arizona · 15.2 MI E JCT US 60 · Structure no. 00193

Built
1916
109 years old, rebuilt 1937
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
488 ft
4 main spans
Daily traffic
1,169
2022 count
Owner
State
State Highway Agency

About this bridge

SR 88; FAS 214 over Boulder Creek is a steel truss - thru carrying SR 88; FAS 214 over Boulder Creek in Maricopa County, Arizona. It was built in 1916 and reconstructed in 1937, so it is 109 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.

It carries about 1,169 vehicles a day, roughly 14% of them trucks, projected to reach 1,179 by 2042. The structure is 488 ft (148.7 m) long and 16 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesSR 88; FAS 214
CrossesBoulder Creek
Location15.2 MI E JCT US 60
RouteState Highway 88
CountyMaricopa County
StateArizona
Coordinates33.5333, -111.4244
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length488 ft (148.7 m)
Longest span180 ft (54.9 m)
Deck width16 ft (5 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic1,169 (2022)
Projected traffic1,179 by 2042
Trucks14%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 88; FAS 214 over Boulder Creek built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1937.

What condition is SR 88; FAS 214 over Boulder 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 September 2024.

How much traffic does SR 88; FAS 214 over Boulder Creek carry?

About 1,169 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR 88; FAS 214 over Boulder Creek?

The structure is 488 ft (148.7 m) long with a longest span of 180 ft (54.9 m) and a deck 16 ft wide.

Who owns SR 88; FAS 214 over Boulder Creek?

It is owned by the State Highway Agency.