US Bridges

Sawmill Road over Board Tree Branch

Good

Perry County, Illinois · Sec 3 T4S R3W 3rd Pm · Structure no. 073319300000000

Built
2020
5 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
55 ft
1 main span
Daily traffic
35
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Sawmill Road over Board Tree Branch is a concrete box beam or girders - multiple carrying Sawmill Road over Board Tree Branch in Perry County, Illinois. It was built in 2020, so it is 5 years old, younger 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 35 vehicles a day, roughly 46% of them trucks, projected to reach 101 by 2046. The structure is 55 ft (16.9 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSawmill Road
CrossesBoard Tree Branch
LocationSec 3 T4S R3W 3rd Pm
RouteCounty Highway 0
Coordinates38.20156, -89.41907
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating42.1 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length55 ft (16.9 m)
Longest span52 ft (16 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic101 by 2046
Trucks46%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Sawmill Road over Board Tree Branch built?

It was built in 2020, making it 5 years old in 2025.

What condition is Sawmill Road over Board Tree Branch 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 2023.

How much traffic does Sawmill Road over Board Tree Branch carry?

About 35 vehicles per day (2024 count), of which roughly 46% are trucks.

How long is Sawmill Road over Board Tree Branch?

The structure is 55 ft (16.9 m) long with a longest span of 52 ft (16 m) and a deck 24 ft wide.

Who owns Sawmill Road over Board Tree Branch?

It is owned by the Town or Township Highway Agency.