US Bridges

N3550 over Creek

Good

Caddo County, Oklahoma · 1.9S of Pine Ridge · Structure no. 279200000000000

Built
2004
21 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
88
2022 count
Owner
County
County Highway Agency

About this bridge

N3550 over Creek is a prestressed concrete stringer/multi-beam or girder carrying N3550 over Creek in Caddo 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 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 88 vehicles a day, roughly 15% of them trucks, projected to reach 141 by 2042. The structure is 73 ft (22.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN3550
CrossesCreek
Location1.9S of Pine Ridge
RouteCounty Highway N2550
Coordinates34.98694, -98.44472
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.1 US tons
Inventory rating44.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.2 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic141 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$930,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3550 over Creek built?

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

What condition is N3550 over Creek 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 February 2024.

How much traffic does N3550 over Creek carry?

About 88 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N3550 over Creek?

The structure is 73 ft (22.2 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns N3550 over Creek?

It is owned by the County Highway Agency.