US Bridges

Monroe St/ FAU 927 over Richland Creek

GoodPosted for load

St. Clair County, Illinois · 0.32M W Ill 159 · Structure no. 082610700000000

Built
1956
69 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
1,700
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Monroe St/ FAU 927 over Richland Creek is a concrete continuous culvert carrying Monroe St/ FAU 927 over Richland Creek in St. Clair County, Illinois. It was built in 1956, so it is 69 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 1,700 vehicles a day, roughly 5% of them trucks, projected to reach 1,970 by 2046. The structure is 60 ft (18.2 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMonroe St/ FAU 927
CrossesRichland Creek
Location0.32M W Ill 159
Coordinates38.5088, -89.99069
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.4 US tons
Inventory rating18.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length60 ft (18.2 m)
Longest span29 ft (8.9 m)
Deck width53 ft (16.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic1,970 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Monroe St/ FAU 927 over Richland Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Monroe St/ FAU 927 over Richland Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Monroe St/ FAU 927 over Richland Creek carry?

About 1,700 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Monroe St/ FAU 927 over Richland Creek?

The structure is 60 ft (18.2 m) long with a longest span of 29 ft (8.9 m) and a deck 53 ft wide.

Who owns Monroe St/ FAU 927 over Richland Creek?

It is owned by the City or Municipal Highway Agency.