US Bridges

S.H. 99 over S.H. 3 under

Fair

Pontotoc County, Oklahoma · 2.4 MI S-E SH 1 · Structure no. 185800000000000

Built
1973
52 years old, rebuilt 2020
Condition
Fair
inspected June 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
256 ft
2 main spans
Daily traffic
6,400
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99 over S.H. 3 under is a steel continuous girder and floorbeam system carrying S.H. 99 over S.H. 3 under in Pontotoc County, Oklahoma. It was built in 1973 and reconstructed in 2020, 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 fair condition with a lowest component rating of 6 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 6,400 vehicles a day, roughly 7% of them trucks, projected to reach 10,240 by 2042. The structure is 256 ft (78 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesS.H. 99
CrossesS.H. 3 under
Location2.4 MI S-E SH 1
RouteState Highway 99
CountyPontotoc County
StateOklahoma
Coordinates34.7494, -96.65693
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length256 ft (78 m)
Longest span139 ft (42.4 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,400 (2022)
Projected traffic10,240 by 2042
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$3.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 99 over S.H. 3 under built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2020.

What condition is S.H. 99 over S.H. 3 under 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 June 2024.

How much traffic does S.H. 99 over S.H. 3 under carry?

About 6,400 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is S.H. 99 over S.H. 3 under?

The structure is 256 ft (78 m) long with a longest span of 139 ft (42.4 m) and a deck 27 ft wide.

Who owns S.H. 99 over S.H. 3 under?

It is owned by the State Highway Agency.