US Bridges

County RD 29 over Marsh Creek

Good

Allegany County, New York · 2.6 MI NW of Shongo · Structure no. 000000003330670

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Slab
Wood or Timber
Length
38 ft
1 main span
Daily traffic
639
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 29 over Marsh Creek is a wood or timber slab carrying County RD 29 over Marsh Creek in Allegany County, New York. It was built in 2007, so it is 18 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 639 vehicles a day, roughly 14% of them trucks, projected to reach 895 by 2040. The structure is 38 ft (11.6 m) long and 32 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesCounty RD 29
CrossesMarsh Creek
Location2.6 MI NW of Shongo
RouteCounty Highway 0
Coordinates42.03259, -77.94089
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.6 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadOther
Structure length38 ft (11.6 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic639 (2020)
Projected traffic895 by 2040
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$751,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 29 over Marsh Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is County RD 29 over Marsh Creek 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 August 2023.

How much traffic does County RD 29 over Marsh Creek carry?

About 639 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is County RD 29 over Marsh Creek?

The structure is 38 ft (11.6 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns County RD 29 over Marsh Creek?

It is owned by the County Highway Agency.