US Bridges

FAI 270 over Water Main

Good

Madison County, Illinois · 1.13 E of Miss River · Structure no. 060201300000000

Built
1964
61 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
46,200
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 270 over Water Main is a concrete culvert carrying FAI 270 over Water Main in Madison County, Illinois. It was built in 1964, so it is 61 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 46,200 vehicles a day, roughly 20% of them trucks, projected to reach 52,644 by 2046. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 42.3 mi (68 km).

CarriesFAI 270
CrossesWater Main
Location1.13 E of Miss River
RouteInterstate 270
Coordinates38.76262, -90.15028
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length28 ft (8.6 m)
Longest span27 ft (8.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,200 (2023)
Projected traffic52,644 by 2046
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed42.3 mi (68 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 FAI 270 over Water Main built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAI 270 over Water Main 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 January 2024.

How much traffic does FAI 270 over Water Main carry?

About 46,200 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is FAI 270 over Water Main?

The structure is 28 ft (8.6 m) long with a longest span of 27 ft (8.2 m).

Who owns FAI 270 over Water Main?

It is owned by the State Highway Agency.