US Bridges

FAS 0720 over N Blue River Oflow

Poor

Bryan County, Oklahoma · 4.3 S of Bokchito · Structure no. 189480000000000

Built
1975
50 years old
Condition
Poor
inspected May 2024
Type
Culvert
Concrete
Length
47 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 0720 over N Blue River Oflow is a concrete culvert carrying FAS 0720 over N Blue River Oflow in Bryan County, Oklahoma. It was built in 1975, so it is 50 years old, older 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 47 ft (14.3 m) long and 70 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesFAS 0720
CrossesN Blue River Oflow
Location4.3 S of Bokchito
RouteCounty Highway 720
CountyBryan County
StateOklahoma
Coordinates33.95139, -96.14706
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMay 2024
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
Deck geometry9: Superior to present desirable 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 loadHS 20
Structure length47 ft (14.3 m)
Longest span15 ft (4.7 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 0720 over N Blue River Oflow built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAS 0720 over N Blue River Oflow 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 May 2024.

How much traffic does FAS 0720 over N Blue River Oflow carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is FAS 0720 over N Blue River Oflow?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.7 m) and a deck 70 ft wide.

Who owns FAS 0720 over N Blue River Oflow?

It is owned by the County Highway Agency.