US Bridges

Summit Estates DR over Stream

Fair

St. Charles County, Missouri · S 13 T 47 N R 2 E · Structure no. 33502

Built
1997
28 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
718
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Summit Estates DR over Stream is a prestressed concrete stringer/multi-beam or girder carrying Summit Estates DR over Stream in St. Charles County, Missouri. It was built in 1997, so it is 28 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 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 718 vehicles a day, roughly 10% of them trucks, projected to reach 1,113 by 2044. The structure is 68 ft (20.7 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSummit Estates DR
CrossesStream
LocationS 13 T 47 N R 2 E
RouteCounty Highway 0
CountySt. Charles County
StateMissouri
Coordinates38.82831, -90.75272
Functional classUrban Local

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span62 ft (18.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic718 (2024)
Projected traffic1,113 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Summit Estates DR over Stream built?

It was built in 1997, making it 28 years old in 2025.

What condition is Summit Estates DR over Stream 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 February 2024.

How much traffic does Summit Estates DR over Stream carry?

About 718 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Summit Estates DR over Stream?

The structure is 68 ft (20.7 m) long with a longest span of 62 ft (18.9 m) and a deck 26 ft wide.

Who owns Summit Estates DR over Stream?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.