US Bridges

N3066 (mc Kinley) over Brock Creek

Poor

Oklahoma County, Oklahoma · Just S of SW 20 · Structure no. 194090000000000

Built
1978
47 years old
Condition
Poor
inspected June 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
2,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N3066 (mc Kinley) over Brock Creek is a concrete culvert carrying N3066 (mc Kinley) over Brock Creek in Oklahoma County, Oklahoma. It was built in 1978, so it is 47 years old, younger than the Oklahoma 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 3 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.

It carries about 2,000 vehicles a day, roughly 5% of them trucks, projected to reach 3,200 by 2042. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN3066 (mc Kinley)
CrossesBrock Creek
LocationJust S of SW 20
RouteCity Street N3066
CountyOklahoma County
StateOklahoma
Coordinates35.44481, -97.53689
Functional classUrban 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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic3,200 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3066 (mc Kinley) over Brock Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is N3066 (mc Kinley) over Brock 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 2023.

How much traffic does N3066 (mc Kinley) over Brock Creek carry?

About 2,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N3066 (mc Kinley) over Brock Creek?

The structure is 45 ft (13.7 m) long with a longest span of 17 ft (5.2 m).

Who owns N3066 (mc Kinley) over Brock Creek?

It is owned by the City or Municipal Highway Agency.