US Bridges

N3570 over Cimarron Tp under

Good

Pawnee County, Oklahoma · 2.5 Mis SE Maramec · Structure no. 185220000000000

Built
1973
52 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
2 main spans
Daily traffic
100
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

N3570 over Cimarron Tp under is a prestressed concrete stringer/multi-beam or girder carrying N3570 over Cimarron Tp under in Pawnee County, Oklahoma. It was built in 1973, so it is 52 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 153 ft (46.6 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesN3570
CrossesCimarron Tp under
Location2.5 Mis SE Maramec
RouteCounty Highway N3570
CountyPawnee County
StateOklahoma
Coordinates36.22494, -96.64238
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.2 US tons
Inventory rating33.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length153 ft (46.6 m)
Longest span75 ft (22.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 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
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was N3570 over Cimarron Tp under built?

It was built in 1973, making it 52 years old in 2025.

What condition is N3570 over Cimarron Tp under in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does N3570 over Cimarron Tp under carry?

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

How long is N3570 over Cimarron Tp under?

The structure is 153 ft (46.6 m) long with a longest span of 75 ft (22.9 m) and a deck 27 ft wide.

Who owns N3570 over Cimarron Tp under?

It is owned by the State Toll Authority.