US Bridges

Guthrie RD over NSRR

Fair

St. Charles County, Missouri · S 26 T 47 N R 2 E · Structure no. 32204

Built
2009
16 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
154 ft
1 main span
Daily traffic
24,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Guthrie RD over NSRR is a steel stringer/multi-beam or girder carrying Guthrie RD over NSRR in St. Charles County, Missouri. It was built in 2009, so it is 16 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 24,500 vehicles a day, roughly 5% of them trucks, projected to reach 37,975 by 2044. The structure is 154 ft (46.9 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGuthrie RD
CrossesNSRR
LocationS 26 T 47 N R 2 E
RouteCity Street 321
CountySt. Charles County
StateMissouri
Coordinates38.80604, -90.77172
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating50.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span150 ft (45.6 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2024)
Projected traffic37,975 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Guthrie RD over NSRR built?

It was built in 2009, making it 16 years old in 2025.

What condition is Guthrie RD over NSRR 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 Guthrie RD over NSRR carry?

About 24,500 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Guthrie RD over NSRR?

The structure is 154 ft (46.9 m) long with a longest span of 150 ft (45.6 m) and a deck 55 ft wide.

Who owns Guthrie RD over NSRR?

It is owned by the City or Municipal Highway Agency.