US Bridges

FAS 941 over Mill Creek

Poor

Alexander County, Illinois · 1.6 MI E of Ill 127 · Structure no. 002306400000000

Built
1980
45 years old
Condition
Poor
inspected March 2023
Type
Channel Beam
Concrete
Length
93 ft
3 main spans
Daily traffic
800
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 941 over Mill Creek is a concrete channel beam carrying FAS 941 over Mill Creek in Alexander County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 800 vehicles a day, roughly 19% of them trucks, projected to reach 1,111 by 2046. The structure is 93 ft (28.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 941
CrossesMill Creek
Location1.6 MI E of Ill 127
RouteCounty Highway 0
Coordinates37.27642, -89.22598
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,111 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 941 over Mill Creek built?

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

What condition is FAS 941 over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does FAS 941 over Mill Creek carry?

About 800 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FAS 941 over Mill Creek?

The structure is 93 ft (28.3 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns FAS 941 over Mill Creek?

It is owned by the County Highway Agency.