US Bridges

SW 29th St. over Lightning Creek

Fair

Oklahoma County, Oklahoma · .1 MI E of Robinson · Structure no. 193320000000000

Built
1977
48 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
10,700
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

SW 29th St. over Lightning Creek is a prestressed concrete stringer/multi-beam or girder carrying SW 29th St. over Lightning Creek in Oklahoma County, Oklahoma. It was built in 1977, so it is 48 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 5 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 10,700 vehicles a day, roughly 7% of them trucks, projected to reach 17,120 by 2042. The structure is 72 ft (21.9 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSW 29th St.
CrossesLightning Creek
Location.1 MI E of Robinson
RouteCity Street E1090
Coordinates35.43515, -97.51433
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span70 ft (21.3 m)
Deck width56 ft (17.1 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,700 (2022)
Projected traffic17,120 by 2042
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$835,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 29th St. over Lightning Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is SW 29th St. over Lightning 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 August 2024.

How much traffic does SW 29th St. over Lightning Creek carry?

About 10,700 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SW 29th St. over Lightning Creek?

The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 56 ft wide.

Who owns SW 29th St. over Lightning Creek?

It is owned by the City or Municipal Highway Agency.