US Bridges

Summit ST S over Is 670 Rp IS670E to IS3

Fair

Jackson County, Missouri · S 6 T 49 N R 33 W · Structure no. 2693

Built
1980
45 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Steel
Length
400 ft
1 main span
Daily traffic
3,634
2024 count
Owner
State
State Highway Agency

About this bridge

Summit ST S over Is 670 Rp IS670E to IS3 is a steel box beam or girders - multiple carrying Summit ST S over Is 670 Rp IS670E to IS3 in Jackson County, Missouri. It was built in 1980, so it is 45 years old, younger 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 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 3,634 vehicles a day, roughly 5% of them trucks, projected to reach 5,088 by 2044. The structure is 400 ft (121.9 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSummit ST S
CrossesIs 670 Rp IS670E to IS3
LocationS 6 T 49 N R 33 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.09656, -94.59321
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length400 ft (121.9 m)
Longest span250 ft (76.2 m)
Deck width61 ft (18.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,634 (2024)
Projected traffic5,088 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Summit ST S over Is 670 Rp IS670E to IS3 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Summit ST S over Is 670 Rp IS670E to IS3 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 January 2024.

How much traffic does Summit ST S over Is 670 Rp IS670E to IS3 carry?

About 3,634 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Summit ST S over Is 670 Rp IS670E to IS3?

The structure is 400 ft (121.9 m) long with a longest span of 250 ft (76.2 m) and a deck 61 ft wide.

Who owns Summit ST S over Is 670 Rp IS670E to IS3?

It is owned by the State Highway Agency.