US Bridges

FAS 788 over Branch of Middle Ck

Fair

Washington County, Illinois · NE 1/4 Sec 11 T2S R2 · Structure no. 095318300000000

Built
1985
40 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
82 ft
3 main spans
Daily traffic
275
2024 count
Owner
County
County Highway Agency

About this bridge

FAS 788 over Branch of Middle Ck is a prestressed concrete box beam or girders - multiple carrying FAS 788 over Branch of Middle Ck in Washington County, Illinois. It was built in 1985, so it is 40 years old, younger than the Illinois average of 45.3 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 275 vehicles a day, roughly 12% of them trucks, projected to reach 363 by 2046. The structure is 82 ft (25 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAS 788
CrossesBranch of Middle Ck
LocationNE 1/4 Sec 11 T2S R2
RouteCounty Highway 0
Coordinates38.37543, -89.2796
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic363 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 788 over Branch of Middle Ck built?

It was built in 1985, making it 40 years old in 2025.

What condition is FAS 788 over Branch of Middle Ck 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 March 2023.

How much traffic does FAS 788 over Branch of Middle Ck carry?

About 275 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is FAS 788 over Branch of Middle Ck?

The structure is 82 ft (25 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns FAS 788 over Branch of Middle Ck?

It is owned by the County Highway Agency.