US Bridges

SR 16 over Big Monon Creek

Fair

White County, Indiana · 02.78 E US 421 · Structure no. 004250

Built
1946
79 years old
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
68 ft
1 main span
Daily traffic
2,072
2020 count
Owner
State
State Highway Agency

About this bridge

SR 16 over Big Monon Creek is a concrete arch - deck carrying SR 16 over Big Monon Creek in White County, Indiana. It was built in 1946, so it is 79 years old, older than the Indiana average of 46.6 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 2,072 vehicles a day, roughly 38% of them trucks, projected to reach 4,542 by 2030. The structure is 68 ft (20.7 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 16
CrossesBig Monon Creek
Location02.78 E US 421
RouteState Highway 16
CountyWhite County
StateIndiana
Coordinates40.86995, -86.82584
Functional classRural Major 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,072 (2020)
Projected traffic4,542 by 2030
Trucks38%
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

OwnerState Highway Agency
Maintained byState 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 SR 16 over Big Monon Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is SR 16 over Big Monon Creek 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 January 2024.

How much traffic does SR 16 over Big Monon Creek carry?

About 2,072 vehicles per day (2020 count), of which roughly 38% are trucks.

How long is SR 16 over Big Monon Creek?

The structure is 68 ft (20.7 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns SR 16 over Big Monon Creek?

It is owned by the State Highway Agency.