US Bridges

FAU 3561 (pine) over Bird Creek

Fair

Logan County, Oklahoma · .2 MI N & 0.7 W I35&SH33 · Structure no. 191700000000000

Built
1976
49 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
41 ft
3 main spans
Daily traffic
300
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3561 (pine) over Bird Creek is a concrete culvert carrying FAU 3561 (pine) over Bird Creek in Logan County, Oklahoma. It was built in 1976, so it is 49 years old, older than the Oklahoma 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 6 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2042. The structure is 41 ft (12.5 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAU 3561 (pine)
CrossesBird Creek
Location.2 MI N & 0.7 W I35&SH33
RouteCity Street 3561
CountyLogan County
StateOklahoma
Coordinates35.88352, -97.40743
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic480 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 FAU 3561 (pine) over Bird Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is FAU 3561 (pine) over Bird 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 January 2023.

How much traffic does FAU 3561 (pine) over Bird Creek carry?

About 300 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 3561 (pine) over Bird Creek?

The structure is 41 ft (12.5 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns FAU 3561 (pine) over Bird Creek?

It is owned by the City or Municipal Highway Agency.