US Bridges

IRR BIA RTE N35 over Walker Creek

PoorPosted for load

Apache County, Arizona · 7.7MI E 8.2MI N Rockpoint · Structure no. 00000000000N248

Built
1977
48 years old, rebuilt 1993
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
90 ft
3 main spans
Daily traffic
192
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N35 over Walker Creek is a steel continuous stringer/multi-beam or girder carrying IRR BIA RTE N35 over Walker Creek in Apache County, Arizona. It was built in 1977 and reconstructed in 1993, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 192 vehicles a day, roughly 5% of them trucks, projected to reach 355 by 2040. The structure is 90 ft (27.4 m) long and 14 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesIRR BIA RTE N35
CrossesWalker Creek
Location7.7MI E 8.2MI N Rockpoint
RouteFederal Lands Road 0N35
StateArizona
Coordinates36.84053, -109.48264
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating3.3 US tons
Inventory rating3.3 US tons

Structure

MaterialSteel Continuous
DeckOpen grating
Main spans3
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span31 ft (9.4 m)
Deck width14 ft (4.4 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192 (2021)
Projected traffic355 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE N35 over Walker Creek built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1993.

What condition is IRR BIA RTE N35 over Walker Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does IRR BIA RTE N35 over Walker Creek carry?

About 192 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N35 over Walker Creek?

The structure is 90 ft (27.4 m) long with a longest span of 31 ft (9.4 m) and a deck 14 ft wide.

Who owns IRR BIA RTE N35 over Walker Creek?

It is owned by the Bureau of Indian Affairs.