US Bridges

IRR E1970 over Wolf Creek

Poor

Marshall County, Oklahoma · 1.5SE of DURWOOD;2S US177 · Structure no. 272550000000000

Built
2004
21 years old
Condition
Poor
inspected October 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

IRR E1970 over Wolf Creek is a concrete culvert carrying IRR E1970 over Wolf Creek in Marshall County, Oklahoma. It was built in 2004, so it is 21 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 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.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 40 ft (12.3 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesIRR E1970
CrossesWolf Creek
Location1.5SE of DURWOOD;2S US177
RouteCounty Highway E1970
CountyMarshall County
StateOklahoma
Coordinates34.15815, -96.95064
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable 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 length40 ft (12.3 m)
Longest span11 ft (3.4 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 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 IRR E1970 over Wolf Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is IRR E1970 over Wolf 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 October 2023.

How much traffic does IRR E1970 over Wolf Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR E1970 over Wolf Creek?

The structure is 40 ft (12.3 m) long with a longest span of 11 ft (3.4 m) and a deck 44 ft wide.

Who owns IRR E1970 over Wolf Creek?

It is owned by the County Highway Agency.