US Bridges

Rt J S over Is 70

Fair

Callaway County, Missouri · S 11 T 48 N R 11 W · Structure no. 6588

Built
1961
64 years old, rebuilt 2009
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
201 ft
4 main spans
Daily traffic
2,586
2024 count
Owner
State
State Highway Agency

About this bridge

Rt J S over Is 70 is a steel continuous stringer/multi-beam or girder carrying Rt J S over Is 70 in Callaway County, Missouri. It was built in 1961 and reconstructed in 2009, so it is 64 years old, older than the Missouri average of 45.1 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 2,586 vehicles a day, roughly 14% of them trucks, projected to reach 4,008 by 2044. The structure is 201 ft (61.3 m) long and 29 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesRt J S
CrossesIs 70
LocationS 11 T 48 N R 11 W
RouteState Highway 0J
CountyCallaway County
StateMissouri
Coordinates38.95355, -92.12867
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length201 ft (61.3 m)
Longest span56 ft (17.1 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,586 (2024)
Projected traffic4,008 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed24.2 mi (39 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rt J S over Is 70 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2009.

What condition is Rt J S over Is 70 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 October 2024.

How much traffic does Rt J S over Is 70 carry?

About 2,586 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Rt J S over Is 70?

The structure is 201 ft (61.3 m) long with a longest span of 56 ft (17.1 m) and a deck 29 ft wide.

Who owns Rt J S over Is 70?

It is owned by the State Highway Agency.